## U.S. National Standards for Second Grade Math

MoneyFreeMoney is a current medium of exchange in the form of coins and banknotes. Read more...iWorksheets: 6Study Guides: 1Vocabulary Sets: 1

### N.1. Number and Operations (NCTM)

#### 1.1. Understand numbers, ways of representing numbers, relationships among numbers, and number systems.

##### 1.1.1. Count with understanding and recognize 'how many' in sets of objects.
SequencingSequencing is when when you count, numbers go in a specific order. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Odd and EvenAll numbers are either odd or even. When a number is even, it can be split into two sets without any leftovers. When you split a number into two sets and there is one left over, that means the number is odd. Read more...iWorksheets :4Study Guides :1
Skip CountingYou can skip count by large numbers such as 25, 50 or 100. Skip counting allows you to count by large numbers following a pattern. Read more...iWorksheets :3Study Guides :1
Counting to 999When you count, you start with the number 1 and stop counting after you count the last object you happen to be counting. Read more...iWorksheets :3Study Guides :1
Odd and EvenWhat are Odd and Even Numbers? ODD numbers are numbers that CAN NOT be equally divided in half, by 2. Read more...iWorksheets :5Study Guides :1
Skip CountingSkip counting is when you SKIP a number or numbers when counting. Counting by 2s, 3s, 4s, 5, and 10s. Read more...iWorksheets :6Study Guides :1Vocabulary :1
SequencingWhat is Sequencing? Sequencing means in order. When we count, we count in order or in a sequence. We use sequencing in our every day lives. We follow directions and count in sequence. Try counting by ones. As you say the number, put your finger on the number on the page. 1 2 3 4 5 6 7 8 9 10. Read more...iWorksheets :4Study Guides :1
Skip CountingWhat is Skip Counting? Skip counting means you do not say every number as you count. You only count special numbers. There are many different ways to skip count. E.g. when counting by twos, you only say every second number: 2 4 6 8 10. Read more...iWorksheets :3Study Guides :1
##### 1.1.2. Use multiple models to develop initial understandings of place value and the base-ten number system.
EstimationWhen you make an estimate, you are making a guess that is approximate. This is often done by rounding. Read more...iWorksheets :6Study Guides :1
Ordering and Comparing NumbersWhen you order numbers, you are putting the numbers in a sequence from the smallest value to the largest value. When you compare two numbers, you are finding which number is larger or smaller than the other. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Place ValueWhat is Place Value? Place value is the AMOUNT that each digit is worth in a number. A number can have MANY place values. Read more...iWorksheets :3Study Guides :1Vocabulary :2
Rounding to Nearest 10Rounding makes numbers easier to work with if you do not need an exact number. Rounded numbers are only approximate. You can use rounded numbers to get an answer that is close but does not have to be exact. Read more...iWorksheets :3Study Guides :1
Place ValueWhat is place value? Place value is the amount that each digit is worth in a numeral. There are many different place values. Read more...iWorksheets :3Study Guides :1Vocabulary :2
Greater Than/Less ThanWhat Is Greater Than and Less Than? When a number is greater than another number, this means it is a larger number. The symbol for greater than is >. When a number is less than another number, this means it is a smaller number. The symbol for less than is <. Read more...iWorksheets :6Study Guides :1
Expanding NumbersWhat Are Expanding Numbers? An expanding number is taking a larger number apart and showing each number’s total value. Number 5398 in expanded form is 5000 + 300 + 90 + 8. Read more...iWorksheets :3Study Guides :1
Place ValuePlace value is what each digit is worth. In the number 4,573 there are four thousands, five hundreds, seven tens, and three ones. How to Find the Place Value: In order to find the place value of a number, you can count the number of places from the right. The first number will be the ones place. The next number moving towards the left would be the tens place, and so on. Read more...iWorksheets :10Study Guides :1
##### 1.1.3. Develop understanding of the relative position and magnitude of whole numbers and of ordinal and cardinal numbers and their connections.
SequencingSequencing is when when you count, numbers go in a specific order. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Using Number LineWhat is a Number Line? Number lines can be used to help with many different ways. The most common ways are for addition and subtraction. Read more...iWorksheets :4Study Guides :1
OrdinalsAn ordinal is an object’s position in the order of a group. An ordinal tells whether an object is first or fifth. Read more...iWorksheets :3Study Guides :1Vocabulary :2
Ordering and Comparing NumbersWhen you order numbers, you are putting the numbers in a sequence from the smallest value to the largest value. When you compare two numbers, you are finding which number is larger or smaller than the other. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Counting to 999When you count, you start with the number 1 and stop counting after you count the last object you happen to be counting. Read more...iWorksheets :3Study Guides :1
OrdinalsOrdinal numbers are numbers that are used to tell what order something is in. Read more...iWorksheets :4Study Guides :1Vocabulary :2
Comparing NumbersWhen comparing two numbers, you figure out if one number is GREATER or LESS THAN the other number. You can use SIGNS to show if a number is greater than, less than, or equal to another number. Read more...iWorksheets :4Study Guides :1Vocabulary :2
Greater Than, Less ThanWhen a number is greater than another number, it means that is is larger. > is the greater than symbol. < is the less than symbol. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Ordering Numbers and Objects by SizeWhat is Ordering? Ordering is when numbers or objects are in a sequence. They may go from smallest to largest. They may go from largest to smallest. Read more...iWorksheets :5Study Guides :1
Greater Than/Less ThanWhat Is Greater Than and Less Than? When a number is greater than another number, this means it is a larger number. The symbol for greater than is >. When a number is less than another number, this means it is a smaller number. The symbol for less than is <. Read more...iWorksheets :6Study Guides :1
SequencingWhat is Sequencing? Sequencing means in order. When we count, we count in order or in a sequence. We use sequencing in our every day lives. We follow directions and count in sequence. Try counting by ones. As you say the number, put your finger on the number on the page. 1 2 3 4 5 6 7 8 9 10. Read more...iWorksheets :4Study Guides :1
##### 1.1.4. Develop a sense of whole numbers and represent and use them in flexible ways, including relating, composing, and decomposing numbers.
EstimationWhen you make an estimate, you are making a guess that is approximate. This is often done by rounding. Read more...iWorksheets :6Study Guides :1
SequencingSequencing is when when you count, numbers go in a specific order. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Odd and EvenAll numbers are either odd or even. When a number is even, it can be split into two sets without any leftovers. When you split a number into two sets and there is one left over, that means the number is odd. Read more...iWorksheets :4Study Guides :1
Number Words to 1,000Numbers can be written in word form. Read more...iWorksheets :3Study Guides :1
Story ProblemsStory problems are a set of sentences that give you the information to a problem that you need to solve. With a story problem, it is your job to figure out whether you will use addition or subtraction to solve the problem. Read more...iWorksheets :6Study Guides :1Vocabulary :1
3 Digit SubtractionWhat Is Three-Digit Subtraction? We subtract to compare numbers. We are able to find the difference between numbers through subtraction. We use subtraction to find out how much more we have or how much smaller something is in comparison to another number. Read more...iWorksheets :3Study Guides :1
Subtraction FactsSubtract means to take away. The meaning of 3-2=1 is that two objects are taken away from a group of three objects and one object remains. Subtraction Facts fun Worksheets and Printables. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Subtraction is not CommutativeCommutative means you can switch around the numbers you are using without changing the result. Addition is commutative. Subtraction, however, is not commutative. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Subtraction FactsSubtraction is taking a group of objects and separating them. When you subtract, your answer gets smaller. If you subtract zero from a number, you answer will stay the same. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Commutative PropertyThe commutative property of addition says that we can add numbers in any order and get the same sum. Read more...iWorksheets :3Study Guides :1
Skip CountingYou can skip count by large numbers such as 25, 50 or 100. Skip counting allows you to count by large numbers following a pattern. Read more...iWorksheets :3Study Guides :1
Using Number LineWhat is a Number Line? Number lines can be used to help with many different ways. The most common ways are for addition and subtraction. Read more...iWorksheets :4Study Guides :1
One More, One LessCount forward by 1 or count backwards by 1. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Determine the One Operation FunctionA one operation function is an equation with only one of the following operations: addition, subtraction, multiplication, or division. Read more...iWorksheets :3Study Guides :1
Ordering and Comparing NumbersWhen you order numbers, you are putting the numbers in a sequence from the smallest value to the largest value. When you compare two numbers, you are finding which number is larger or smaller than the other. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Commutative PropertyWhat is the commutative property? It is used in addition. Commutative property is when a number sentence is turned around and it still means the same thing. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Number WordsNumber words are the words you write for a number. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Counting to 999When you count, you start with the number 1 and stop counting after you count the last object you happen to be counting. Read more...iWorksheets :3Study Guides :1
Odd and EvenWhat are Odd and Even Numbers? ODD numbers are numbers that CAN NOT be equally divided in half, by 2. Read more...iWorksheets :5Study Guides :1
Skip CountingSkip counting is when you SKIP a number or numbers when counting. Counting by 2s, 3s, 4s, 5, and 10s. Read more...iWorksheets :6Study Guides :1Vocabulary :1
Place ValueWhat is Place Value? Place value is the AMOUNT that each digit is worth in a number. A number can have MANY place values. Read more...iWorksheets :3Study Guides :1Vocabulary :2
Double Digit Addition without RegroupingSteps to follow when adding a double-digit number:<br> First: Add the two numbers in the ONES place.<br> Second: Add the two numbers in the TENS place. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Story ProblemsA story problem is a word problem that contains a problem you need to solve by adding, subtracting, multiplying or dividing in order to figure out the answer. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Rounding to Nearest 10Rounding makes numbers easier to work with if you do not need an exact number. Rounded numbers are only approximate. You can use rounded numbers to get an answer that is close but does not have to be exact. Read more...iWorksheets :3Study Guides :1
Place ValueWhat is place value? Place value is the amount that each digit is worth in a numeral. There are many different place values. Read more...iWorksheets :3Study Guides :1Vocabulary :2
Double Digit SubtractionWhat Is Double Digit Subtraction? Double digit subtraction is taking a number with two digits (ex. 23) and subtracting it from another two digit number (ex. 33). The answer is known as the difference. Read more...iWorksheets :4Study Guides :1
Double Digit AdditionWhat Is Double Digit Addition? Double digit addition is taking a two digit number (ex. 32) and adding it to another two digit number (ex. 27). The answer of these two addends is known as the sum. Read more...iWorksheets :4Study Guides :1
RegroupingWhat Is Regrouping? Regrouping in addition is used when the sum of the ones place is larger than nine. The tens place of the sum is moved to the top of the tens place column to be added with the others. Read more...iWorksheets :3Study Guides :1
Associative PropertyAssociative Property of Addition explains that when three or more numbers are added, the sum is the same regardless of the order in which the numbers are grouped and/or added. Read more...iWorksheets :3Study Guides :1
Odd/Even NumbersWhat is odd number? An odd number is a number that will have a leftover when divided into two equal groups. What is even number? An even number is a number that can be divided into two equal groups without any leftovers. Read more...iWorksheets :6Study Guides :1
Open Number SentencesWhat Are Open Number Sentences? Open number sentences are equations that give one part of the equation along with the answer. In order to solve an open number sentence, the inverse operation is used. Read more...iWorksheets :3Study Guides :1
MultiplicationMultiplication is similar to adding a number to itself a certain number of times. When multiplying an odd number with an odd number, the product is always an odd number. When multiplying an odd number with an even number or two even numbers, the product is always an even number. Read more...iWorksheets :19Study Guides :1
Greater Than/Less ThanWhat Is Greater Than and Less Than? When a number is greater than another number, this means it is a larger number. The symbol for greater than is >. When a number is less than another number, this means it is a smaller number. The symbol for less than is <. Read more...iWorksheets :6Study Guides :1
Expanding NumbersWhat Are Expanding Numbers? An expanding number is taking a larger number apart and showing each number’s total value. Number 5398 in expanded form is 5000 + 300 + 90 + 8. Read more...iWorksheets :3Study Guides :1
Word ProblemsWhat Are Story Problems? Story problems are a bunch of sentences set up to give you information in order to solve a problem. Story problems most often give you all the information needed to solve the problem. They may even include information you do not need at all. Read more...iWorksheets :15Study Guides :1
Place ValuePlace value is what each digit is worth. In the number 4,573 there are four thousands, five hundreds, seven tens, and three ones. How to Find the Place Value: In order to find the place value of a number, you can count the number of places from the right. The first number will be the ones place. The next number moving towards the left would be the tens place, and so on. Read more...iWorksheets :10Study Guides :1
DivisionFreeWhat Is Division? Division is an operation that tells: how many equal sized groups, how many in each group. The number you divide by is called the DIVISOR. The number you are dividing is called the DIVIDEND. And the answer is called the QUOTIENT. Read more...iWorksheets :6Study Guides :1
SequencingWhat is Sequencing? Sequencing means in order. When we count, we count in order or in a sequence. We use sequencing in our every day lives. We follow directions and count in sequence. Try counting by ones. As you say the number, put your finger on the number on the page. 1 2 3 4 5 6 7 8 9 10. Read more...iWorksheets :4Study Guides :1
One Less, One MoreWhat is One Less or One More? One less means the number that comes before. One more means the number that comes after. How to figure out one more: If you are given a number, say 2. You are asked to find the number that is one more. You count on from 2 and the answer is 3. Read more...iWorksheets :3Study Guides :1
Skip CountingWhat is Skip Counting? Skip counting means you do not say every number as you count. You only count special numbers. There are many different ways to skip count. E.g. when counting by twos, you only say every second number: 2 4 6 8 10. Read more...iWorksheets :3Study Guides :1
##### 1.1.5. Connect number words and numerals to the quantities they represent, using various physical models and representations.
EstimationWhen you make an estimate, you are making a guess that is approximate. This is often done by rounding. Read more...iWorksheets :6Study Guides :1
SequencingSequencing is when when you count, numbers go in a specific order. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Odd and EvenAll numbers are either odd or even. When a number is even, it can be split into two sets without any leftovers. When you split a number into two sets and there is one left over, that means the number is odd. Read more...iWorksheets :4Study Guides :1
Number Words to 1,000Numbers can be written in word form. Read more...iWorksheets :3Study Guides :1
Story ProblemsStory problems are a set of sentences that give you the information to a problem that you need to solve. With a story problem, it is your job to figure out whether you will use addition or subtraction to solve the problem. Read more...iWorksheets :6Study Guides :1Vocabulary :1
3 Digit SubtractionWhat Is Three-Digit Subtraction? We subtract to compare numbers. We are able to find the difference between numbers through subtraction. We use subtraction to find out how much more we have or how much smaller something is in comparison to another number. Read more...iWorksheets :3Study Guides :1
Subtraction FactsSubtract means to take away. The meaning of 3-2=1 is that two objects are taken away from a group of three objects and one object remains. Subtraction Facts fun Worksheets and Printables. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Subtraction is not CommutativeCommutative means you can switch around the numbers you are using without changing the result. Addition is commutative. Subtraction, however, is not commutative. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Subtraction FactsSubtraction is taking a group of objects and separating them. When you subtract, your answer gets smaller. If you subtract zero from a number, you answer will stay the same. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Commutative PropertyThe commutative property of addition says that we can add numbers in any order and get the same sum. Read more...iWorksheets :3Study Guides :1
Skip CountingYou can skip count by large numbers such as 25, 50 or 100. Skip counting allows you to count by large numbers following a pattern. Read more...iWorksheets :3Study Guides :1
Using Number LineWhat is a Number Line? Number lines can be used to help with many different ways. The most common ways are for addition and subtraction. Read more...iWorksheets :4Study Guides :1
One More, One LessCount forward by 1 or count backwards by 1. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Determine the One Operation FunctionA one operation function is an equation with only one of the following operations: addition, subtraction, multiplication, or division. Read more...iWorksheets :3Study Guides :1
Ordering and Comparing NumbersWhen you order numbers, you are putting the numbers in a sequence from the smallest value to the largest value. When you compare two numbers, you are finding which number is larger or smaller than the other. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Commutative PropertyWhat is the commutative property? It is used in addition. Commutative property is when a number sentence is turned around and it still means the same thing. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Number WordsNumber words are the words you write for a number. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Counting to 999When you count, you start with the number 1 and stop counting after you count the last object you happen to be counting. Read more...iWorksheets :3Study Guides :1
Odd and EvenWhat are Odd and Even Numbers? ODD numbers are numbers that CAN NOT be equally divided in half, by 2. Read more...iWorksheets :5Study Guides :1
Skip CountingSkip counting is when you SKIP a number or numbers when counting. Counting by 2s, 3s, 4s, 5, and 10s. Read more...iWorksheets :6Study Guides :1Vocabulary :1
Place ValueWhat is Place Value? Place value is the AMOUNT that each digit is worth in a number. A number can have MANY place values. Read more...iWorksheets :3Study Guides :1Vocabulary :2
Comparing NumbersWhen comparing two numbers, you figure out if one number is GREATER or LESS THAN the other number. You can use SIGNS to show if a number is greater than, less than, or equal to another number. Read more...iWorksheets :4Study Guides :1Vocabulary :2
Double Digit Addition without RegroupingSteps to follow when adding a double-digit number:<br> First: Add the two numbers in the ONES place.<br> Second: Add the two numbers in the TENS place. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Story ProblemsA story problem is a word problem that contains a problem you need to solve by adding, subtracting, multiplying or dividing in order to figure out the answer. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Rounding to Nearest 10Rounding makes numbers easier to work with if you do not need an exact number. Rounded numbers are only approximate. You can use rounded numbers to get an answer that is close but does not have to be exact. Read more...iWorksheets :3Study Guides :1
Place ValueWhat is place value? Place value is the amount that each digit is worth in a numeral. There are many different place values. Read more...iWorksheets :3Study Guides :1Vocabulary :2
Double Digit SubtractionWhat Is Double Digit Subtraction? Double digit subtraction is taking a number with two digits (ex. 23) and subtracting it from another two digit number (ex. 33). The answer is known as the difference. Read more...iWorksheets :4Study Guides :1
Double Digit AdditionWhat Is Double Digit Addition? Double digit addition is taking a two digit number (ex. 32) and adding it to another two digit number (ex. 27). The answer of these two addends is known as the sum. Read more...iWorksheets :4Study Guides :1
RegroupingWhat Is Regrouping? Regrouping in addition is used when the sum of the ones place is larger than nine. The tens place of the sum is moved to the top of the tens place column to be added with the others. Read more...iWorksheets :3Study Guides :1
Associative PropertyAssociative Property of Addition explains that when three or more numbers are added, the sum is the same regardless of the order in which the numbers are grouped and/or added. Read more...iWorksheets :3Study Guides :1
Odd/Even NumbersWhat is odd number? An odd number is a number that will have a leftover when divided into two equal groups. What is even number? An even number is a number that can be divided into two equal groups without any leftovers. Read more...iWorksheets :6Study Guides :1
Open Number SentencesWhat Are Open Number Sentences? Open number sentences are equations that give one part of the equation along with the answer. In order to solve an open number sentence, the inverse operation is used. Read more...iWorksheets :3Study Guides :1
MultiplicationMultiplication is similar to adding a number to itself a certain number of times. When multiplying an odd number with an odd number, the product is always an odd number. When multiplying an odd number with an even number or two even numbers, the product is always an even number. Read more...iWorksheets :19Study Guides :1
Greater Than/Less ThanWhat Is Greater Than and Less Than? When a number is greater than another number, this means it is a larger number. The symbol for greater than is >. When a number is less than another number, this means it is a smaller number. The symbol for less than is <. Read more...iWorksheets :6Study Guides :1
Expanding NumbersWhat Are Expanding Numbers? An expanding number is taking a larger number apart and showing each number’s total value. Number 5398 in expanded form is 5000 + 300 + 90 + 8. Read more...iWorksheets :3Study Guides :1
Word ProblemsWhat Are Story Problems? Story problems are a bunch of sentences set up to give you information in order to solve a problem. Story problems most often give you all the information needed to solve the problem. They may even include information you do not need at all. Read more...iWorksheets :15Study Guides :1
Place ValuePlace value is what each digit is worth. In the number 4,573 there are four thousands, five hundreds, seven tens, and three ones. How to Find the Place Value: In order to find the place value of a number, you can count the number of places from the right. The first number will be the ones place. The next number moving towards the left would be the tens place, and so on. Read more...iWorksheets :10Study Guides :1
DivisionFreeWhat Is Division? Division is an operation that tells: how many equal sized groups, how many in each group. The number you divide by is called the DIVISOR. The number you are dividing is called the DIVIDEND. And the answer is called the QUOTIENT. Read more...iWorksheets :6Study Guides :1
SequencingWhat is Sequencing? Sequencing means in order. When we count, we count in order or in a sequence. We use sequencing in our every day lives. We follow directions and count in sequence. Try counting by ones. As you say the number, put your finger on the number on the page. 1 2 3 4 5 6 7 8 9 10. Read more...iWorksheets :4Study Guides :1
One Less, One MoreWhat is One Less or One More? One less means the number that comes before. One more means the number that comes after. How to figure out one more: If you are given a number, say 2. You are asked to find the number that is one more. You count on from 2 and the answer is 3. Read more...iWorksheets :3Study Guides :1
Skip CountingWhat is Skip Counting? Skip counting means you do not say every number as you count. You only count special numbers. There are many different ways to skip count. E.g. when counting by twos, you only say every second number: 2 4 6 8 10. Read more...iWorksheets :3Study Guides :1
##### 1.1.6. Understand and represent commonly used fractions, such as 1/4, 1/3, and 1/2.
Fractions Greater Than or Less Than 1/2Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape. Read more...iWorksheets :5Study Guides :1Vocabulary :1
FractionsFractions can show a part of a group or part of a set. Read more...iWorksheets :6Study Guides :1
FractionsWhat are fractions? When an object is broken into a number of parts, these parts must all be the same size. These equal parts can be counted to become a fraction of that object. Read more...iWorksheets :8Study Guides :1Vocabulary :2
Comparing FractionsWhen comparing fractions, you are finding which fraction is greater and which fractions is less than the other. Similar to comparing numbers, there are symbols to use when comparing fractions. Read more...iWorksheets :5Study Guides :1Vocabulary :1
FractionsA fraction is a part of a whole. Fractions for 1/2, 1/3, 1/4, 1/5, 1/6, 1/7, 1/8, 1/10, and 1/12 Read more...iWorksheets :7Study Guides :1Vocabulary :2
Equivalent Fractions to 1/2Fractions that are equivalent to ½ are fractions that have different denominators than ½, but still show half. Fractions that are equivalent to ½ can be simplified to ½. Fractions equivalent to ½ have an even number as their denominator. Read more...iWorksheets :3Study Guides :1

#### 1.2. Understand meanings of operations and how they relate to one another.

##### 1.2.1. Understand various meanings of addition and subtraction of whole numbers and the relationship between the two operations.
Story ProblemsStory problems are a set of sentences that give you the information to a problem that you need to solve. With a story problem, it is your job to figure out whether you will use addition or subtraction to solve the problem. Read more...iWorksheets :6Study Guides :1Vocabulary :1
Subtraction FactsSubtract means to take away. The meaning of 3-2=1 is that two objects are taken away from a group of three objects and one object remains. Subtraction Facts fun Worksheets and Printables. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Subtraction FactsSubtraction is taking a group of objects and separating them. When you subtract, your answer gets smaller. If you subtract zero from a number, you answer will stay the same. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Commutative PropertyWhat is the commutative property? It is used in addition. Commutative property is when a number sentence is turned around and it still means the same thing. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Story ProblemsA story problem is a word problem that contains a problem you need to solve by adding, subtracting, multiplying or dividing in order to figure out the answer. Read more...iWorksheets :4Study Guides :1Vocabulary :1
##### 1.2.2. Understand the effects of adding and subtracting whole numbers.
Story ProblemsStory problems are a set of sentences that give you the information to a problem that you need to solve. With a story problem, it is your job to figure out whether you will use addition or subtraction to solve the problem. Read more...iWorksheets :6Study Guides :1Vocabulary :1
Subtraction FactsSubtract means to take away. The meaning of 3-2=1 is that two objects are taken away from a group of three objects and one object remains. Subtraction Facts fun Worksheets and Printables. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Subtraction FactsSubtraction is taking a group of objects and separating them. When you subtract, your answer gets smaller. If you subtract zero from a number, you answer will stay the same. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Commutative PropertyWhat is the commutative property? It is used in addition. Commutative property is when a number sentence is turned around and it still means the same thing. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Story ProblemsA story problem is a word problem that contains a problem you need to solve by adding, subtracting, multiplying or dividing in order to figure out the answer. Read more...iWorksheets :4Study Guides :1Vocabulary :1
##### 1.2.3. Understand situations that entail multiplication and division, such as equal groupings of objects and sharing equally.
MultiplicationMultiplication is similar to adding a number to itself a certain number of times. When multiplying an odd number with an odd number, the product is always an odd number. When multiplying an odd number with an even number or two even numbers, the product is always an even number. Read more...iWorksheets :19Study Guides :1
DivisionFreeWhat Is Division? Division is an operation that tells: how many equal sized groups, how many in each group. The number you divide by is called the DIVISOR. The number you are dividing is called the DIVIDEND. And the answer is called the QUOTIENT. Read more...iWorksheets :6Study Guides :1

#### 1.3. Compute fluently and make reasonable estimates.

##### 1.3.1. Develop and use strategies for whole-number computations, with a focus on addition and subtraction.
Story ProblemsStory problems are a set of sentences that give you the information to a problem that you need to solve. With a story problem, it is your job to figure out whether you will use addition or subtraction to solve the problem. Read more...iWorksheets :6Study Guides :1Vocabulary :1
3 Digit SubtractionWhat Is Three-Digit Subtraction? We subtract to compare numbers. We are able to find the difference between numbers through subtraction. We use subtraction to find out how much more we have or how much smaller something is in comparison to another number. Read more...iWorksheets :3Study Guides :1
Subtraction FactsSubtract means to take away. The meaning of 3-2=1 is that two objects are taken away from a group of three objects and one object remains. Subtraction Facts fun Worksheets and Printables. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Subtraction FactsSubtraction is taking a group of objects and separating them. When you subtract, your answer gets smaller. If you subtract zero from a number, you answer will stay the same. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Commutative PropertyThe commutative property of addition says that we can add numbers in any order and get the same sum. Read more...iWorksheets :3Study Guides :1
Using Number LineWhat is a Number Line? Number lines can be used to help with many different ways. The most common ways are for addition and subtraction. Read more...iWorksheets :4Study Guides :1
One More, One LessCount forward by 1 or count backwards by 1. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Commutative PropertyWhat is the commutative property? It is used in addition. Commutative property is when a number sentence is turned around and it still means the same thing. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Double Digit Addition without RegroupingSteps to follow when adding a double-digit number:<br> First: Add the two numbers in the ONES place.<br> Second: Add the two numbers in the TENS place. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Story ProblemsA story problem is a word problem that contains a problem you need to solve by adding, subtracting, multiplying or dividing in order to figure out the answer. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Double Digit SubtractionWhat Is Double Digit Subtraction? Double digit subtraction is taking a number with two digits (ex. 23) and subtracting it from another two digit number (ex. 33). The answer is known as the difference. Read more...iWorksheets :4Study Guides :1
Double Digit AdditionWhat Is Double Digit Addition? Double digit addition is taking a two digit number (ex. 32) and adding it to another two digit number (ex. 27). The answer of these two addends is known as the sum. Read more...iWorksheets :4Study Guides :1
RegroupingWhat Is Regrouping? Regrouping in addition is used when the sum of the ones place is larger than nine. The tens place of the sum is moved to the top of the tens place column to be added with the others. Read more...iWorksheets :3Study Guides :1
Associative PropertyAssociative Property of Addition explains that when three or more numbers are added, the sum is the same regardless of the order in which the numbers are grouped and/or added. Read more...iWorksheets :3Study Guides :1
Word ProblemsWhat Are Story Problems? Story problems are a bunch of sentences set up to give you information in order to solve a problem. Story problems most often give you all the information needed to solve the problem. They may even include information you do not need at all. Read more...iWorksheets :15Study Guides :1
One Less, One MoreWhat is One Less or One More? One less means the number that comes before. One more means the number that comes after. How to figure out one more: If you are given a number, say 2. You are asked to find the number that is one more. You count on from 2 and the answer is 3. Read more...iWorksheets :3Study Guides :1
##### 1.3.2. Develop fluency with basic number combinations for addition and subtraction.
Story ProblemsStory problems are a set of sentences that give you the information to a problem that you need to solve. With a story problem, it is your job to figure out whether you will use addition or subtraction to solve the problem. Read more...iWorksheets :6Study Guides :1Vocabulary :1
Subtraction FactsSubtract means to take away. The meaning of 3-2=1 is that two objects are taken away from a group of three objects and one object remains. Subtraction Facts fun Worksheets and Printables. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Subtraction is not CommutativeCommutative means you can switch around the numbers you are using without changing the result. Addition is commutative. Subtraction, however, is not commutative. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Subtraction FactsSubtraction is taking a group of objects and separating them. When you subtract, your answer gets smaller. If you subtract zero from a number, you answer will stay the same. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Using Number LineWhat is a Number Line? Number lines can be used to help with many different ways. The most common ways are for addition and subtraction. Read more...iWorksheets :4Study Guides :1
One More, One LessCount forward by 1 or count backwards by 1. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Commutative PropertyWhat is the commutative property? It is used in addition. Commutative property is when a number sentence is turned around and it still means the same thing. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Double Digit Addition without RegroupingSteps to follow when adding a double-digit number:<br> First: Add the two numbers in the ONES place.<br> Second: Add the two numbers in the TENS place. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Story ProblemsA story problem is a word problem that contains a problem you need to solve by adding, subtracting, multiplying or dividing in order to figure out the answer. Read more...iWorksheets :4Study Guides :1Vocabulary :1
One Less, One MoreWhat is One Less or One More? One less means the number that comes before. One more means the number that comes after. How to figure out one more: If you are given a number, say 2. You are asked to find the number that is one more. You count on from 2 and the answer is 3. Read more...iWorksheets :3Study Guides :1
##### 1.3.3. Use a variety of methods and tools to compute, including objects, mental computation, estimation, paper and pencil, and calculators.
EstimationWhen you make an estimate, you are making a guess that is approximate. This is often done by rounding. Read more...iWorksheets :6Study Guides :1

### N.2. Algebra (NCTM)

#### 2.1. Understand patterns, relations, and functions.

##### 2.1.1. Sort, classify, and order objects by size, number, and other properties.
ShapesWe are surrounded by many different kinds of shapes every day. Many shapes are flat. These shapes are two-dimensional plane figures. Read more...iWorksheets :10Study Guides :1
ShapesFreeA shape is the form something takes. Read more...iWorksheets :12Study Guides :1Vocabulary :2
Solids and FacesYou can use solid shapes to help describe real-world objects. These shapes have surfaces called faces. Read more...iWorksheets :5Study Guides :1
AttributesFreeAn attribute describes an object. <br>You use attributes to describe two objects when they are not the same. <br>An attribute can tell you if an object is shorter, taller, longer or smaller than another object. Read more...iWorksheets :19Study Guides :1Vocabulary :3
Ordering Numbers and Objects by SizeWhat is Ordering? Ordering is when numbers or objects are in a sequence. They may go from smallest to largest. They may go from largest to smallest. Read more...iWorksheets :5Study Guides :1
Congruent ShapesFreeCongruent shapes are shapes that are the exact same shape and size. Congruent shapes can be rotated or reflected. When 2 shapes are congruent, they have the exact same size and shape. Read more...iWorksheets :4Study Guides :1Vocabulary :1
SolidsWhat are solid figures? Solid figures are 3-dimensional figures that have length, width, and height. Solid figures have faces on them. A face is a FLAT surface on a solid figure and can be different shapes. Read more...iWorksheets :7Study Guides :1
##### 2.1.2. Recognize, describe, and extend patterns such as sequences of sounds and shapes or simple numeric patterns and translate from one representation to another.
PatternsA pattern is an order of things repeated over and over. Read more...iWorksheets :6Study Guides :1
PatternsFreeWhat are Patterns? Patterns are all around us. We can see them in nature, clothing, words, and even floor tiles. Read more...iWorksheets :17Study Guides :1Vocabulary :1
Number PatternsA pattern is a repeated cycle. Read more...iWorksheets :7Study Guides :1Vocabulary :1
##### 2.1.3. Analyze how both repeating and growing patterns are generated.
PatternsA pattern is an order of things repeated over and over. Read more...iWorksheets :6Study Guides :1
PatternsFreeWhat are Patterns? Patterns are all around us. We can see them in nature, clothing, words, and even floor tiles. Read more...iWorksheets :17Study Guides :1Vocabulary :1
Number PatternsA pattern is a repeated cycle. Read more...iWorksheets :7Study Guides :1Vocabulary :1

#### 2.2. Represent and analyze mathematical situations and structures using algebraic symbols.

##### 2.2.1. Illustrate general principles and properties of operations, such as commutativity, using specific numbers.
Commutative PropertyThe commutative property of addition says that we can add numbers in any order and get the same sum. Read more...iWorksheets :3Study Guides :1
Commutative PropertyWhat is the commutative property? It is used in addition. Commutative property is when a number sentence is turned around and it still means the same thing. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Associative PropertyAssociative Property of Addition explains that when three or more numbers are added, the sum is the same regardless of the order in which the numbers are grouped and/or added. Read more...iWorksheets :3Study Guides :1
##### 2.2.2. Use concrete, pictorial, and verbal representations to develop an understanding of invented and conventional symbolic notations.
Story ProblemsStory problems are a set of sentences that give you the information to a problem that you need to solve. With a story problem, it is your job to figure out whether you will use addition or subtraction to solve the problem. Read more...iWorksheets :6Study Guides :1Vocabulary :1
Subtraction FactsSubtract means to take away. The meaning of 3-2=1 is that two objects are taken away from a group of three objects and one object remains. Subtraction Facts fun Worksheets and Printables. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Subtraction FactsSubtraction is taking a group of objects and separating them. When you subtract, your answer gets smaller. If you subtract zero from a number, you answer will stay the same. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Commutative PropertyWhat is the commutative property? It is used in addition. Commutative property is when a number sentence is turned around and it still means the same thing. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Story ProblemsA story problem is a word problem that contains a problem you need to solve by adding, subtracting, multiplying or dividing in order to figure out the answer. Read more...iWorksheets :4Study Guides :1Vocabulary :1
DivisionFreeWhat Is Division? Division is an operation that tells: how many equal sized groups, how many in each group. The number you divide by is called the DIVISOR. The number you are dividing is called the DIVIDEND. And the answer is called the QUOTIENT. Read more...iWorksheets :6Study Guides :1

#### 2.3. Use mathematical models to represent and understand quantitative relationships.

##### 2.3.1. Model situations that involve the addition and subtraction of whole numbers, using objects, pictures, and symbols.
Story ProblemsStory problems are a set of sentences that give you the information to a problem that you need to solve. With a story problem, it is your job to figure out whether you will use addition or subtraction to solve the problem. Read more...iWorksheets :6Study Guides :1Vocabulary :1
3 Digit SubtractionWhat Is Three-Digit Subtraction? We subtract to compare numbers. We are able to find the difference between numbers through subtraction. We use subtraction to find out how much more we have or how much smaller something is in comparison to another number. Read more...iWorksheets :3Study Guides :1
Subtraction FactsSubtract means to take away. The meaning of 3-2=1 is that two objects are taken away from a group of three objects and one object remains. Subtraction Facts fun Worksheets and Printables. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Subtraction is not CommutativeCommutative means you can switch around the numbers you are using without changing the result. Addition is commutative. Subtraction, however, is not commutative. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Subtraction FactsSubtraction is taking a group of objects and separating them. When you subtract, your answer gets smaller. If you subtract zero from a number, you answer will stay the same. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Using Number LineWhat is a Number Line? Number lines can be used to help with many different ways. The most common ways are for addition and subtraction. Read more...iWorksheets :4Study Guides :1
One More, One LessCount forward by 1 or count backwards by 1. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Commutative PropertyWhat is the commutative property? It is used in addition. Commutative property is when a number sentence is turned around and it still means the same thing. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Double Digit Addition without RegroupingSteps to follow when adding a double-digit number:<br> First: Add the two numbers in the ONES place.<br> Second: Add the two numbers in the TENS place. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Story ProblemsA story problem is a word problem that contains a problem you need to solve by adding, subtracting, multiplying or dividing in order to figure out the answer. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Double Digit SubtractionWhat Is Double Digit Subtraction? Double digit subtraction is taking a number with two digits (ex. 23) and subtracting it from another two digit number (ex. 33). The answer is known as the difference. Read more...iWorksheets :4Study Guides :1
Double Digit AdditionWhat Is Double Digit Addition? Double digit addition is taking a two digit number (ex. 32) and adding it to another two digit number (ex. 27). The answer of these two addends is known as the sum. Read more...iWorksheets :4Study Guides :1
RegroupingWhat Is Regrouping? Regrouping in addition is used when the sum of the ones place is larger than nine. The tens place of the sum is moved to the top of the tens place column to be added with the others. Read more...iWorksheets :3Study Guides :1
Word ProblemsWhat Are Story Problems? Story problems are a bunch of sentences set up to give you information in order to solve a problem. Story problems most often give you all the information needed to solve the problem. They may even include information you do not need at all. Read more...iWorksheets :15Study Guides :1
One Less, One MoreWhat is One Less or One More? One less means the number that comes before. One more means the number that comes after. How to figure out one more: If you are given a number, say 2. You are asked to find the number that is one more. You count on from 2 and the answer is 3. Read more...iWorksheets :3Study Guides :1

### N.3. Geometry (NCTM)

#### 3.1. Analyze characteristics and properties of two- and three-dimensional geometric shapes and develop mathematical arguments about geometric relationships.

##### 3.1.1. Recognize, name, build, draw, compare, and sort two- and three-dimensional shapes.
ShapesWe are surrounded by many different kinds of shapes every day. Many shapes are flat. These shapes are two-dimensional plane figures. Read more...iWorksheets :10Study Guides :1
ShapesFreeA shape is the form something takes. Read more...iWorksheets :12Study Guides :1Vocabulary :2
Solids and FacesYou can use solid shapes to help describe real-world objects. These shapes have surfaces called faces. Read more...iWorksheets :5Study Guides :1
Congruent ShapesFreeCongruent shapes are shapes that are the exact same shape and size. Congruent shapes can be rotated or reflected. When 2 shapes are congruent, they have the exact same size and shape. Read more...iWorksheets :4Study Guides :1Vocabulary :1
SolidsWhat are solid figures? Solid figures are 3-dimensional figures that have length, width, and height. Solid figures have faces on them. A face is a FLAT surface on a solid figure and can be different shapes. Read more...iWorksheets :7Study Guides :1
##### 3.1.2. Describe attributes and parts of two- and three-dimensional shapes.
ShapesWe are surrounded by many different kinds of shapes every day. Many shapes are flat. These shapes are two-dimensional plane figures. Read more...iWorksheets :10Study Guides :1
ShapesFreeA shape is the form something takes. Read more...iWorksheets :12Study Guides :1Vocabulary :2
Solids and FacesYou can use solid shapes to help describe real-world objects. These shapes have surfaces called faces. Read more...iWorksheets :5Study Guides :1
Congruent ShapesFreeCongruent shapes are shapes that are the exact same shape and size. Congruent shapes can be rotated or reflected. When 2 shapes are congruent, they have the exact same size and shape. Read more...iWorksheets :4Study Guides :1Vocabulary :1
SolidsWhat are solid figures? Solid figures are 3-dimensional figures that have length, width, and height. Solid figures have faces on them. A face is a FLAT surface on a solid figure and can be different shapes. Read more...iWorksheets :7Study Guides :1

#### 3.2. Specify locations and describe spatial relationships using coordinate geometry and other representational systems.

##### 3.2.1. Describe, name, and interpret relative positions in space and apply ideas about relative position.
Relative PositionWhat is Relative Position? Relative position describes where an object or person is compared to another object or person. The terms used in relative position are: below, up, next to, left, right, under, over, behind, on front of, far near, down. Read more...iWorksheets :12Study Guides :1Vocabulary :2
Relative PositionRelative position describes where objects are positioned in relationship to other nearby objects. This can be a point defined with reference to another position, either fixed or moving. Read more...iWorksheets :8
##### 3.2.2. Describe, name, and interpret direction and distance in navigating space and apply ideas about direction and distance.
Relative PositionWhat is Relative Position? Relative position describes where an object or person is compared to another object or person. The terms used in relative position are: below, up, next to, left, right, under, over, behind, on front of, far near, down. Read more...iWorksheets :12Study Guides :1Vocabulary :2
Relative PositionRelative position describes where objects are positioned in relationship to other nearby objects. This can be a point defined with reference to another position, either fixed or moving. Read more...iWorksheets :8
##### 3.2.3. Find and name locations with simple relationships such as 'near to' and in coordinate systems such as maps.
Relative PositionWhat is Relative Position? Relative position describes where an object or person is compared to another object or person. The terms used in relative position are: below, up, next to, left, right, under, over, behind, on front of, far near, down. Read more...iWorksheets :12Study Guides :1Vocabulary :2
Relative PositionRelative position describes where objects are positioned in relationship to other nearby objects. This can be a point defined with reference to another position, either fixed or moving. Read more...iWorksheets :8

#### 3.3. Apply transformations and use symmetry to analyze mathematical situations.

##### 3.3.2. Recognize and create shapes that have symmetry.
SymmetrySymmetry is an exact matching of two parts along a fold line. Read more...iWorksheets :4Study Guides :1
SymmetryWhat is Symmetry? Symmetry is when a shape or an object can be folded and both sides of the fold are the same size and shape. The fold line is called the line of symmetry. Not all shapes or objects have a line of symmetry. Read more...iWorksheets :3Study Guides :1Vocabulary :1

#### 3.4. Use visualization, spatial reasoning, and geometric modeling to solve problems.

##### 3.4.3. Relate ideas in geometry to ideas in number and measurement.
PerimeterWhat Is Perimeter? The perimeter is the measurement of the distance around the outside of a shape or object. To find the perimeter of a shape or object, simply add the outside dimensions together. Read more...iWorksheets :4Study Guides :1
##### 3.4.4. Recognize geometric shapes and structures in the environment and specify their location.
ShapesWe are surrounded by many different kinds of shapes every day. Many shapes are flat. These shapes are two-dimensional plane figures. Read more...iWorksheets :10Study Guides :1
ShapesFreeA shape is the form something takes. Read more...iWorksheets :12Study Guides :1Vocabulary :2
Solids and FacesYou can use solid shapes to help describe real-world objects. These shapes have surfaces called faces. Read more...iWorksheets :5Study Guides :1
SymmetryWhat is Symmetry? Symmetry is when a shape or an object can be folded and both sides of the fold are the same size and shape. The fold line is called the line of symmetry. Not all shapes or objects have a line of symmetry. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Congruent ShapesFreeCongruent shapes are shapes that are the exact same shape and size. Congruent shapes can be rotated or reflected. When 2 shapes are congruent, they have the exact same size and shape. Read more...iWorksheets :4Study Guides :1Vocabulary :1
SolidsWhat are solid figures? Solid figures are 3-dimensional figures that have length, width, and height. Solid figures have faces on them. A face is a FLAT surface on a solid figure and can be different shapes. Read more...iWorksheets :7Study Guides :1

### N.4. Measurement (NCTM)

#### 4.1. Understand measurable attributes of objects and the units, systems, and processes of measurement.

##### 4.1.1. Recognize the attributes of length, volume, weight, area, and time.
CalendarFreeA calendar is a chart or series of pages showing the days, weeks, and months of a particular year, or giving particular seasonal information. Read more...iWorksheets :9Study Guides :1Vocabulary :1
Months of the YearFreeThere are twelve months in one year. The months are always in the same order. Read more...iWorksheets :4Study Guides :1Vocabulary :1
MeasurementMeasurement is the use of units to show size, length, weight, or capacity.There are customary measurements and metric measurements. Read more...iWorksheets :13Study Guides :1Vocabulary :2
MeasurementFreeMeasurement in inches, feet, centimeters, meters, cups, pints, quarts, gallons, liters, pounds, grams, and kilograms. Read more...iWorksheets :10Study Guides :1Vocabulary :3
Units of MeasureWhat are Units of Measurement? People measure mass, volume, and length. These measurements are labeled with appropriate unit of measurement. Read more...iWorksheets :4Study Guides :1
Comparing ObjectsWhen you compare two objects, you identify how the objects are ALIKE and how they are DIFFERENT. Read more...iWorksheets :4Study Guides :1Vocabulary :2
TimeTell time to the nearest hour, half hour, and quarter hour. Read more...iWorksheets :15Study Guides :1Vocabulary :2
Story ProblemsA story problem is a word problem that contains a problem you need to solve by adding, subtracting, multiplying or dividing in order to figure out the answer. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Telling TimeFreeTime is measuring of how long it takes to do different activities like playing a game, doing your Math homework or riding your bike. A clock measures time. It helps us know the time. Time is measured in hours and minutes. Read more...iWorksheets :10Study Guides :1Vocabulary :1
MeasurementFreeWhat is measurement? Measurement is used in our everyday lives. We measure to cook or bake, and how far away a place is. There are metric measurements which include liters, centimeters, grams and kilograms. Read more...iWorksheets :12Study Guides :1Vocabulary :2
Days of the WeekWhat are the days of the week? There are seven days in a week. They are: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday. Saturday and Sunday are considered weekends. Monday through Friday are considered weekdays. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Determine Appropriate Standard of UnitsWhat are the Standard of Units? When measuring objects or distances, there are certain measurements of length, distance, weight, and capacity that should be used. There are customary standard of units and metric standard of units. Read more...iWorksheets :3Study Guides :1
TimeFreeWhat Is Time? Time is a way to measure days, nights, and events. Time is made up of seconds, minutes, and hours. An analog clock is a clock with the numbers 1 through 12 around in a circle. Read more...iWorksheets :17Study Guides :1
##### 4.1.2. Compare and order objects according to these attributes.
Comparing ObjectsWhen you compare two objects, you identify how the objects are ALIKE and how they are DIFFERENT. Read more...iWorksheets :4Study Guides :1Vocabulary :2
AttributesFreeAn attribute describes an object. <br>You use attributes to describe two objects when they are not the same. <br>An attribute can tell you if an object is shorter, taller, longer or smaller than another object. Read more...iWorksheets :19Study Guides :1Vocabulary :3
Ordering Numbers and Objects by SizeWhat is Ordering? Ordering is when numbers or objects are in a sequence. They may go from smallest to largest. They may go from largest to smallest. Read more...iWorksheets :5Study Guides :1
##### 4.1.3. Understand how to measure using nonstandard and standard units.
MeasurementMeasurement is the use of units to show size, length, weight, or capacity.There are customary measurements and metric measurements. Read more...iWorksheets :13Study Guides :1Vocabulary :2
MeasurementFreeMeasurement in inches, feet, centimeters, meters, cups, pints, quarts, gallons, liters, pounds, grams, and kilograms. Read more...iWorksheets :10Study Guides :1Vocabulary :3
Units of MeasureWhat are Units of Measurement? People measure mass, volume, and length. These measurements are labeled with appropriate unit of measurement. Read more...iWorksheets :4Study Guides :1
Comparing ObjectsWhen you compare two objects, you identify how the objects are ALIKE and how they are DIFFERENT. Read more...iWorksheets :4Study Guides :1Vocabulary :2
MeasurementFreeWhat is measurement? Measurement is used in our everyday lives. We measure to cook or bake, and how far away a place is. There are metric measurements which include liters, centimeters, grams and kilograms. Read more...iWorksheets :12Study Guides :1Vocabulary :2
Determine Appropriate Standard of UnitsWhat are the Standard of Units? When measuring objects or distances, there are certain measurements of length, distance, weight, and capacity that should be used. There are customary standard of units and metric standard of units. Read more...iWorksheets :3Study Guides :1
##### 4.1.4. Select an appropriate unit and tool for the attribute being measured.
MeasurementMeasurement is the use of units to show size, length, weight, or capacity.There are customary measurements and metric measurements. Read more...iWorksheets :13Study Guides :1Vocabulary :2
MeasurementFreeMeasurement in inches, feet, centimeters, meters, cups, pints, quarts, gallons, liters, pounds, grams, and kilograms. Read more...iWorksheets :10Study Guides :1Vocabulary :3
Units of MeasureWhat are Units of Measurement? People measure mass, volume, and length. These measurements are labeled with appropriate unit of measurement. Read more...iWorksheets :4Study Guides :1
Comparing ObjectsWhen you compare two objects, you identify how the objects are ALIKE and how they are DIFFERENT. Read more...iWorksheets :4Study Guides :1Vocabulary :2
TemperatureTemperature is what we use to measure how hot or cold things are. A thermometer is used to measure temperature. Read more...iWorksheets :3Study Guides :1
MeasurementFreeWhat is measurement? Measurement is used in our everyday lives. We measure to cook or bake, and how far away a place is. There are metric measurements which include liters, centimeters, grams and kilograms. Read more...iWorksheets :12Study Guides :1Vocabulary :2
Determine Appropriate Standard of UnitsWhat are the Standard of Units? When measuring objects or distances, there are certain measurements of length, distance, weight, and capacity that should be used. There are customary standard of units and metric standard of units. Read more...iWorksheets :3Study Guides :1
TemperatureWhat Is Temperature? Temperature is the measure of how hot or cold something is. Temperature is measured with a thermometer. Temperature is measured in degrees Celsius (ºC) or degrees Fahrenheit (ºF). Read more...iWorksheets :3Study Guides :1

#### 4.2. Apply appropriate techniques, tools, and formulas to determine measurements.

##### 4.2.3. Use tools to measure.
MeasurementMeasurement is the use of units to show size, length, weight, or capacity.There are customary measurements and metric measurements. Read more...iWorksheets :13Study Guides :1Vocabulary :2
MeasurementFreeMeasurement in inches, feet, centimeters, meters, cups, pints, quarts, gallons, liters, pounds, grams, and kilograms. Read more...iWorksheets :10Study Guides :1Vocabulary :3
Units of MeasureWhat are Units of Measurement? People measure mass, volume, and length. These measurements are labeled with appropriate unit of measurement. Read more...iWorksheets :4Study Guides :1
Comparing ObjectsWhen you compare two objects, you identify how the objects are ALIKE and how they are DIFFERENT. Read more...iWorksheets :4Study Guides :1Vocabulary :2
TemperatureTemperature is what we use to measure how hot or cold things are. A thermometer is used to measure temperature. Read more...iWorksheets :3Study Guides :1
MeasurementFreeWhat is measurement? Measurement is used in our everyday lives. We measure to cook or bake, and how far away a place is. There are metric measurements which include liters, centimeters, grams and kilograms. Read more...iWorksheets :12Study Guides :1Vocabulary :2
Determine Appropriate Standard of UnitsWhat are the Standard of Units? When measuring objects or distances, there are certain measurements of length, distance, weight, and capacity that should be used. There are customary standard of units and metric standard of units. Read more...iWorksheets :3Study Guides :1
TemperatureWhat Is Temperature? Temperature is the measure of how hot or cold something is. Temperature is measured with a thermometer. Temperature is measured in degrees Celsius (ºC) or degrees Fahrenheit (ºF). Read more...iWorksheets :3Study Guides :1

### N.5. Data Analysis and Probability (NCTM)

#### 5.2. Select and use appropriate statistical methods to analyze data.

##### 5.2.1. Describe parts of the data and the set of data as a whole to determine what the data show.
Graphs and ChartsWhat Are Graphs? A way to show information in the form of shapes or pictures. Graphs show the relationship between two sets of information. There are many different types of graphs. A few of them include bar graphs, line graphs, pictographs, and circle graphs. Read more...iWorksheets :10Study Guides :1Vocabulary :1
GraphsGraphs are visual displays of data and information. A bar graph is a graph that uses BARS to show data. Bar graphs are used to compare two or more objects or people. Graphs and charts allow people to learn information quickly and easily. Read more...iWorksheets :9Study Guides :1

#### 5.3. Develop and evaluate inferences and predictions that are based on data.

##### 5.3.1. Discuss events related to students' experiences as likely or unlikely.
ProbabilityWhat Is Probability? Probability is the chance that a particular event will occur. There are four different ways to show the probability: One way is to show the certainty: certain, likely, somewhat likely, not likely, impossible. The other three ways are with numbers. Probability word problems worksheet. Read more...iWorksheets :8Study Guides :1
ProbabilityWhat is Probability? Probability is the CHANCE of whether something will happen or not. If two things or events have the same chance of happening, we say then they have the SAME probability. Probability word problems worksheet. Read more...iWorksheets :8Study Guides :1

### N.11. Grade 2 Curriculum Focal Points (NCTM)

#### 11.1. Number and Operations: Developing an understanding of the base-ten numeration system and place-value concepts

##### 11.1.1. Children develop an understanding of the base-ten numeration system and place-value concepts (at least to 1000). Their understanding of base-ten numeration includes ideas of counting in units and multiples of hundreds, tens, and ones, as well as a grasp of number relationships, which they demonstrate in a variety of ways, including comparing and ordering numbers. They understand multi-digit numbers in terms of place value, recognizing that place-value notation is a shorthand for the sums of multiples of powers of 10 (e.g., 853 as 8 hundreds + 5 tens + 3 ones).
EstimationWhen you make an estimate, you are making a guess that is approximate. This is often done by rounding. Read more...iWorksheets :6Study Guides :1
SequencingSequencing is when when you count, numbers go in a specific order. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Using Number LineWhat is a Number Line? Number lines can be used to help with many different ways. The most common ways are for addition and subtraction. Read more...iWorksheets :4Study Guides :1
Ordering and Comparing NumbersWhen you order numbers, you are putting the numbers in a sequence from the smallest value to the largest value. When you compare two numbers, you are finding which number is larger or smaller than the other. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Counting to 999When you count, you start with the number 1 and stop counting after you count the last object you happen to be counting. Read more...iWorksheets :3Study Guides :1
Place ValueWhat is Place Value? Place value is the AMOUNT that each digit is worth in a number. A number can have MANY place values. Read more...iWorksheets :3Study Guides :1Vocabulary :2
Comparing NumbersWhen comparing two numbers, you figure out if one number is GREATER or LESS THAN the other number. You can use SIGNS to show if a number is greater than, less than, or equal to another number. Read more...iWorksheets :4Study Guides :1Vocabulary :2
Rounding to Nearest 10Rounding makes numbers easier to work with if you do not need an exact number. Rounded numbers are only approximate. You can use rounded numbers to get an answer that is close but does not have to be exact. Read more...iWorksheets :3Study Guides :1
Place ValueWhat is place value? Place value is the amount that each digit is worth in a numeral. There are many different place values. Read more...iWorksheets :3Study Guides :1Vocabulary :2
Greater Than, Less ThanWhen a number is greater than another number, it means that is is larger. > is the greater than symbol. < is the less than symbol. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Ordering Numbers and Objects by SizeWhat is Ordering? Ordering is when numbers or objects are in a sequence. They may go from smallest to largest. They may go from largest to smallest. Read more...iWorksheets :5Study Guides :1
Greater Than/Less ThanWhat Is Greater Than and Less Than? When a number is greater than another number, this means it is a larger number. The symbol for greater than is >. When a number is less than another number, this means it is a smaller number. The symbol for less than is <. Read more...iWorksheets :6Study Guides :1
Expanding NumbersWhat Are Expanding Numbers? An expanding number is taking a larger number apart and showing each number’s total value. Number 5398 in expanded form is 5000 + 300 + 90 + 8. Read more...iWorksheets :3Study Guides :1
Place ValuePlace value is what each digit is worth. In the number 4,573 there are four thousands, five hundreds, seven tens, and three ones. How to Find the Place Value: In order to find the place value of a number, you can count the number of places from the right. The first number will be the ones place. The next number moving towards the left would be the tens place, and so on. Read more...iWorksheets :10Study Guides :1
SequencingWhat is Sequencing? Sequencing means in order. When we count, we count in order or in a sequence. We use sequencing in our every day lives. We follow directions and count in sequence. Try counting by ones. As you say the number, put your finger on the number on the page. 1 2 3 4 5 6 7 8 9 10. Read more...iWorksheets :4Study Guides :1

#### 11.2. Number and Operations and Algebra: Developing quick recall of addition facts and related subtraction facts and fluency with multi-digit addition and subtraction

##### 11.2.1. Children use their understanding of addition to develop quick recall of basic addition facts and related subtraction facts. They solve arithmetic problems by applying their understanding of models of addition and subtraction (such as combining or separating sets or using number lines), relationships and properties of number (such as place value), and properties of addition (commutativity and associativity). Children develop, discuss, and use efficient, accurate, and generalizable methods to add and subtract multi-digit whole numbers. They select and apply appropriate methods to estimate sums and differences or calculate them mentally, depending on the context and numbers involved. They develop fluency with efficient procedures, including standard algorithms, for adding and subtracting whole numbers, understand why the procedures work (on the basis of place value and properties of operations), and use them to solve problems.
Story ProblemsStory problems are a set of sentences that give you the information to a problem that you need to solve. With a story problem, it is your job to figure out whether you will use addition or subtraction to solve the problem. Read more...iWorksheets :6Study Guides :1Vocabulary :1
3 Digit SubtractionWhat Is Three-Digit Subtraction? We subtract to compare numbers. We are able to find the difference between numbers through subtraction. We use subtraction to find out how much more we have or how much smaller something is in comparison to another number. Read more...iWorksheets :3Study Guides :1
Subtraction FactsSubtract means to take away. The meaning of 3-2=1 is that two objects are taken away from a group of three objects and one object remains. Subtraction Facts fun Worksheets and Printables. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Subtraction is not CommutativeCommutative means you can switch around the numbers you are using without changing the result. Addition is commutative. Subtraction, however, is not commutative. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Subtraction FactsSubtraction is taking a group of objects and separating them. When you subtract, your answer gets smaller. If you subtract zero from a number, you answer will stay the same. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Commutative PropertyThe commutative property of addition says that we can add numbers in any order and get the same sum. Read more...iWorksheets :3Study Guides :1
Using Number LineWhat is a Number Line? Number lines can be used to help with many different ways. The most common ways are for addition and subtraction. Read more...iWorksheets :4Study Guides :1
One More, One LessCount forward by 1 or count backwards by 1. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Commutative PropertyWhat is the commutative property? It is used in addition. Commutative property is when a number sentence is turned around and it still means the same thing. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Double Digit Addition without RegroupingSteps to follow when adding a double-digit number:<br> First: Add the two numbers in the ONES place.<br> Second: Add the two numbers in the TENS place. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Story ProblemsA story problem is a word problem that contains a problem you need to solve by adding, subtracting, multiplying or dividing in order to figure out the answer. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Double Digit SubtractionWhat Is Double Digit Subtraction? Double digit subtraction is taking a number with two digits (ex. 23) and subtracting it from another two digit number (ex. 33). The answer is known as the difference. Read more...iWorksheets :4Study Guides :1
Double Digit AdditionWhat Is Double Digit Addition? Double digit addition is taking a two digit number (ex. 32) and adding it to another two digit number (ex. 27). The answer of these two addends is known as the sum. Read more...iWorksheets :4Study Guides :1
RegroupingWhat Is Regrouping? Regrouping in addition is used when the sum of the ones place is larger than nine. The tens place of the sum is moved to the top of the tens place column to be added with the others. Read more...iWorksheets :3Study Guides :1
Associative PropertyAssociative Property of Addition explains that when three or more numbers are added, the sum is the same regardless of the order in which the numbers are grouped and/or added. Read more...iWorksheets :3Study Guides :1
Word ProblemsWhat Are Story Problems? Story problems are a bunch of sentences set up to give you information in order to solve a problem. Story problems most often give you all the information needed to solve the problem. They may even include information you do not need at all. Read more...iWorksheets :15Study Guides :1
One Less, One MoreWhat is One Less or One More? One less means the number that comes before. One more means the number that comes after. How to figure out one more: If you are given a number, say 2. You are asked to find the number that is one more. You count on from 2 and the answer is 3. Read more...iWorksheets :3Study Guides :1

#### 11.3. Measurement: Developing an understanding of linear measurement and facility in measuring lengths

##### 11.3.1. Children develop an understanding of the meaning and processes of measurement, including such underlying concepts as partitioning (the mental activity of slicing the length of an object into equal-sized units) and transitivity (e.g., if object A is longer than object B and object B is longer than object C, then object A is longer than object C). They understand linear measure as an iteration of units and use rulers and other measurement tools with that understanding. They understand the need for equal-length units, the use of standard units of measure (centimeter and inch), and the inverse relationship between the size of a unit and the number of units used in a particular measurement (i.e., children recognize that the smaller the unit, the more iterations they need to cover a given length).
MeasurementMeasurement is the use of units to show size, length, weight, or capacity.There are customary measurements and metric measurements. Read more...iWorksheets :13Study Guides :1Vocabulary :2
MeasurementFreeMeasurement in inches, feet, centimeters, meters, cups, pints, quarts, gallons, liters, pounds, grams, and kilograms. Read more...iWorksheets :10Study Guides :1Vocabulary :3
Units of MeasureWhat are Units of Measurement? People measure mass, volume, and length. These measurements are labeled with appropriate unit of measurement. Read more...iWorksheets :4Study Guides :1
Comparing ObjectsWhen you compare two objects, you identify how the objects are ALIKE and how they are DIFFERENT. Read more...iWorksheets :4Study Guides :1Vocabulary :2
MeasurementFreeWhat is measurement? Measurement is used in our everyday lives. We measure to cook or bake, and how far away a place is. There are metric measurements which include liters, centimeters, grams and kilograms. Read more...iWorksheets :12Study Guides :1Vocabulary :2
Determine Appropriate Standard of UnitsWhat are the Standard of Units? When measuring objects or distances, there are certain measurements of length, distance, weight, and capacity that should be used. There are customary standard of units and metric standard of units. Read more...iWorksheets :3Study Guides :1

### N.12. Connections to the Grade 2 Focal Points (NCTM)

#### 12.1. Number and Operations: Children use place value and properties of operations to create equivalent representations of given numbers (such as 35 represented by 35 ones, 3 tens and 5 ones, or 2 tens and 15 ones) and to write, compare, and order multi-digit numbers. They use these ideas to compose and decompose multi-digit numbers. Children add and subtract to solve a variety of problems, including applications involving measurement, geometry, and data, as well as nonroutine problems. In preparation for grade 3, they solve problems involving multiplicative situations, developing initial understandings of multiplication as repeated addition.

SequencingSequencing is when when you count, numbers go in a specific order. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Number Words to 1,000Numbers can be written in word form. Read more...iWorksheets :3Study Guides :1
Story ProblemsStory problems are a set of sentences that give you the information to a problem that you need to solve. With a story problem, it is your job to figure out whether you will use addition or subtraction to solve the problem. Read more...iWorksheets :6Study Guides :1Vocabulary :1
Subtraction FactsSubtract means to take away. The meaning of 3-2=1 is that two objects are taken away from a group of three objects and one object remains. Subtraction Facts fun Worksheets and Printables. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Subtraction FactsSubtraction is taking a group of objects and separating them. When you subtract, your answer gets smaller. If you subtract zero from a number, you answer will stay the same. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Using Number LineWhat is a Number Line? Number lines can be used to help with many different ways. The most common ways are for addition and subtraction. Read more...iWorksheets :4Study Guides :1
Ordering and Comparing NumbersWhen you order numbers, you are putting the numbers in a sequence from the smallest value to the largest value. When you compare two numbers, you are finding which number is larger or smaller than the other. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Counting to 999When you count, you start with the number 1 and stop counting after you count the last object you happen to be counting. Read more...iWorksheets :3Study Guides :1
Comparing NumbersWhen comparing two numbers, you figure out if one number is GREATER or LESS THAN the other number. You can use SIGNS to show if a number is greater than, less than, or equal to another number. Read more...iWorksheets :4Study Guides :1Vocabulary :2
Story ProblemsA story problem is a word problem that contains a problem you need to solve by adding, subtracting, multiplying or dividing in order to figure out the answer. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Greater Than, Less ThanWhen a number is greater than another number, it means that is is larger. > is the greater than symbol. < is the less than symbol. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Ordering Numbers and Objects by SizeWhat is Ordering? Ordering is when numbers or objects are in a sequence. They may go from smallest to largest. They may go from largest to smallest. Read more...iWorksheets :5Study Guides :1
Greater Than/Less ThanWhat Is Greater Than and Less Than? When a number is greater than another number, this means it is a larger number. The symbol for greater than is >. When a number is less than another number, this means it is a smaller number. The symbol for less than is <. Read more...iWorksheets :6Study Guides :1
Expanding NumbersWhat Are Expanding Numbers? An expanding number is taking a larger number apart and showing each number’s total value. Number 5398 in expanded form is 5000 + 300 + 90 + 8. Read more...iWorksheets :3Study Guides :1
Word ProblemsWhat Are Story Problems? Story problems are a bunch of sentences set up to give you information in order to solve a problem. Story problems most often give you all the information needed to solve the problem. They may even include information you do not need at all. Read more...iWorksheets :15Study Guides :1
SequencingWhat is Sequencing? Sequencing means in order. When we count, we count in order or in a sequence. We use sequencing in our every day lives. We follow directions and count in sequence. Try counting by ones. As you say the number, put your finger on the number on the page. 1 2 3 4 5 6 7 8 9 10. Read more...iWorksheets :4Study Guides :1

#### 12.2. Geometry and Measurement: Children estimate, measure, and compute lengths as they solve problems involving data, space, and movement through space. By composing and decomposing two-dimensional shapes (intentionally substituting arrangements of smaller shapes for larger shapes or substituting larger shapes for many smaller shapes), they use geometric knowledge and spatial reasoning to develop foundations for understanding area, fractions, and proportions.

MeasurementMeasurement is the use of units to show size, length, weight, or capacity.There are customary measurements and metric measurements. Read more...iWorksheets :13Study Guides :1Vocabulary :2
MeasurementFreeMeasurement in inches, feet, centimeters, meters, cups, pints, quarts, gallons, liters, pounds, grams, and kilograms. Read more...iWorksheets :10Study Guides :1Vocabulary :3
Units of MeasureWhat are Units of Measurement? People measure mass, volume, and length. These measurements are labeled with appropriate unit of measurement. Read more...iWorksheets :4Study Guides :1
Comparing ObjectsWhen you compare two objects, you identify how the objects are ALIKE and how they are DIFFERENT. Read more...iWorksheets :4Study Guides :1Vocabulary :2
MeasurementFreeWhat is measurement? Measurement is used in our everyday lives. We measure to cook or bake, and how far away a place is. There are metric measurements which include liters, centimeters, grams and kilograms. Read more...iWorksheets :12Study Guides :1Vocabulary :2
Determine Appropriate Standard of UnitsWhat are the Standard of Units? When measuring objects or distances, there are certain measurements of length, distance, weight, and capacity that should be used. There are customary standard of units and metric standard of units. Read more...iWorksheets :3Study Guides :1

#### 12.3. Algebra: Children use number patterns to extend their knowledge of properties of numbers and operations. For example, when skip counting, they build foundations for understanding multiples and factors.

Odd and EvenAll numbers are either odd or even. When a number is even, it can be split into two sets without any leftovers. When you split a number into two sets and there is one left over, that means the number is odd. Read more...iWorksheets :4Study Guides :1
Skip CountingYou can skip count by large numbers such as 25, 50 or 100. Skip counting allows you to count by large numbers following a pattern. Read more...iWorksheets :3Study Guides :1
Odd and EvenWhat are Odd and Even Numbers? ODD numbers are numbers that CAN NOT be equally divided in half, by 2. Read more...iWorksheets :5Study Guides :1
Skip CountingSkip counting is when you SKIP a number or numbers when counting. Counting by 2s, 3s, 4s, 5, and 10s. Read more...iWorksheets :6Study Guides :1Vocabulary :1
Skip CountingWhat is Skip Counting? Skip counting means you do not say every number as you count. You only count special numbers. There are many different ways to skip count. E.g. when counting by twos, you only say every second number: 2 4 6 8 10. Read more...iWorksheets :3Study Guides :1