Maryland College and Career-Ready Standards for First Grade Math

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: 18Study Guides: 1Vocabulary Sets: 3
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 Sets: 1
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 Sets: 2
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 Sets: 1
Counting CoinsMoney is what we use to buy the things we want or need. Pennies, nickels, dimes and quarters are all the forms of US money. Read more...iWorksheets: 4Study Guides: 1Vocabulary Sets: 1
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: 3Study Guides: 1Vocabulary Sets: 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 Sets: 1

MD.MA.1.OA. Operations and Algebraic Thinking (OA)

1.OA.A. Represent and solve problems involving addition and subtraction.

1.OA.A.1. Major Standard: Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
1.OA.A.1.1. Ability to represent the problem in multiple ways including drawings and or objects/manipulatives (e.g., counters, unifix cubes, Digi-Blocks, number lines, and part-part-whole mats).
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 :3Study 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
Addition FactsFreeWhen you add, you combine two or more numbers together to get ONE answer… one SUM. A sum is the answer to an addition problem. Read more...iWorksheets :9Study 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
Addition FactsFreeWhat is Addition? Addition is taking two groups of objects and putting them together. When adding, the answer gets larger. When you add 0, the answer remains the same. <br>How to Add: The two numbers you are adding together are called addends. Read more...iWorksheets :13Study Guides :1Vocabulary :2
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.OA.A.1.2. Ability to take apart and combine numbers in a wide variety of ways.
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 :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
Addition FactsFreeWhen you add, you combine two or more numbers together to get ONE answer… one SUM. A sum is the answer to an addition problem. Read more...iWorksheets :9Study Guides :1Vocabulary :2
Addition FactsFreeWhat is Addition? Addition is taking two groups of objects and putting them together. When adding, the answer gets larger. When you add 0, the answer remains the same. <br>How to Add: The two numbers you are adding together are called addends. Read more...iWorksheets :13Study Guides :1Vocabulary :2
1.OA.A.1.3. Ability to make sense of quantity and be able to compare numbers.
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
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
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
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.OA.A.1.5. Ability to solve a variety of addition and subtraction word problems (CCSS, Page 88, Table 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
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.OA.A.2. Major Standard: Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
1.OA.A.2.1. Ability to add numbers in any order and be able to identify the most efficient way to solve the problem.
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
1.OA.A.2.2. Ability to solve a variety of addition and subtraction word problems (CCSS, Page 88, Table 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
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.OA.B. Understand and apply properties of operations and relationship between addition and subtraction.

1.OA.B.3. Major Standard: Apply properties of operations as strategies to add and subtract. (Students need not use formal terms for these properties.) Examples: If 8+3 = 11 is known, then 3+8 = 11 is also known (Commutative property of addition). To add 2+6+4, the second two numbers can be added to make a ten, so 2+6+4 = 2+10, which equals 12 (Associative property of addition).
1.OA.B.3.1. Knowledge of and ability to use the properties of operations (CCSS, Page 90, Table 3).
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
1.OA.B.4. Major Standard: Understand subtraction as an unknown-addend problem. For example, subtract 10–8 by finding the number that makes 10 when added to 8.
1.OA.B.4.2. Ability to apply the strategy to think addition rather than take away: Rather than find 9-6 = ?, ask how many would you add to six to equal nine?
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 :3Study 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
Addition FactsFreeWhen you add, you combine two or more numbers together to get ONE answer… one SUM. A sum is the answer to an addition problem. Read more...iWorksheets :9Study 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
Addition FactsFreeWhat is Addition? Addition is taking two groups of objects and putting them together. When adding, the answer gets larger. When you add 0, the answer remains the same. <br>How to Add: The two numbers you are adding together are called addends. Read more...iWorksheets :13Study Guides :1Vocabulary :2
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.OA.B.4.4. Ability to use the open number line to find the unknown.
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

1.OA.C. Add and subtract within 20.

1.OA.C.5. Major Standard: Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).
1.OA.C.5.1. Knowledge of and ability to use addition counting strategies (e.g., Counting All, Counting On, Counting On from the Larger Number) to solve addition 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
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
Addition FactsFreeWhen you add, you combine two or more numbers together to get ONE answer… one SUM. A sum is the answer to an addition problem. Read more...iWorksheets :9Study 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
Addition FactsFreeWhat is Addition? Addition is taking two groups of objects and putting them together. When adding, the answer gets larger. When you add 0, the answer remains the same. <br>How to Add: The two numbers you are adding together are called addends. Read more...iWorksheets :13Study Guides :1Vocabulary :2
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.OA.C.5.2. Knowledge of and ability to use subtraction counting strategies (Counting Up To, Counting Back From) 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
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 :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
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.OA.C.5.3. Ability to use skip counting to add, understanding when skip counting they are adding groups of, such as when counting by 2s to add 2, understand that a counting by 2s is counting groups of 2.
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
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
Addition FactsFreeWhen you add, you combine two or more numbers together to get ONE answer… one SUM. A sum is the answer to an addition problem. Read more...iWorksheets :9Study 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
Addition FactsFreeWhat is Addition? Addition is taking two groups of objects and putting them together. When adding, the answer gets larger. When you add 0, the answer remains the same. <br>How to Add: The two numbers you are adding together are called addends. Read more...iWorksheets :13Study Guides :1Vocabulary :2
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.OA.C.6. Major Standard: Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on, making ten (e.g. 8+6 = 8+2+4, which leads to 10+4 = 14); decomposing a number leading to a ten (13–4 = 13–3–1, which leads to 10–1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8+4 = 12, one knows 12–8 = 4); and creating equivalent but easier or known sums (e.g., adding 6+7 by creating the known equivalent 6+6+1 = 12+1, which equals 13).
1.OA.C.6.1. Ability to use mental math strategies such as counting on, making ten, decomposing a number leading to ten, the relationship between addition and subtraction, and creating equivalent but easier or know sums to add and subtract within 20, first using visual models and then moving to mental math.
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 :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
Addition FactsFreeWhen you add, you combine two or more numbers together to get ONE answer… one SUM. A sum is the answer to an addition problem. Read more...iWorksheets :9Study 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
Addition FactsFreeWhat is Addition? Addition is taking two groups of objects and putting them together. When adding, the answer gets larger. When you add 0, the answer remains the same. <br>How to Add: The two numbers you are adding together are called addends. Read more...iWorksheets :13Study Guides :1Vocabulary :2
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.OA.C.6.2. Ability to demonstrate fluency for addition and subtraction within 10, building first on accurate recall of the facts using games, (including technology) and purposeful practice (Tasks which are timed should not be used unless students have demonstrated accurate recall of the facts).
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 :3Study 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
Addition FactsFreeWhen you add, you combine two or more numbers together to get ONE answer… one SUM. A sum is the answer to an addition problem. Read more...iWorksheets :9Study 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
Addition FactsFreeWhat is Addition? Addition is taking two groups of objects and putting them together. When adding, the answer gets larger. When you add 0, the answer remains the same. <br>How to Add: The two numbers you are adding together are called addends. Read more...iWorksheets :13Study Guides :1Vocabulary :2
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.OA.D. Work with addition and subtraction equations.

1.OA.D.7. Major Standard: Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false. For example, which of the following equations are true and which are false?: 6 = 6, 7 = 8–1, 5+2 = 2+5, 4+1 = 5+2.
1.OA.D.7.1. Knowledge that an equal sign represents the relationship between two equal quantities.
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
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
1.OA.D.7.3. Understand the equal sign means “is the same as”.
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
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
1.OA.D.8. Major Standard: Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. For example, determine the unknown number that makes the question true in each of the equations: 8+? = 11, 5 = ?-3, 6+6 = ?.
1.OA.D.8.1. Ability to represent the problem in multiple ways including drawings and or objects/manipulatives (e.g., counters, connecting cubes, Digi-Blocks, number lines).
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 :3Study 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
Addition FactsFreeWhen you add, you combine two or more numbers together to get ONE answer… one SUM. A sum is the answer to an addition problem. Read more...iWorksheets :9Study 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
Addition FactsFreeWhat is Addition? Addition is taking two groups of objects and putting them together. When adding, the answer gets larger. When you add 0, the answer remains the same. <br>How to Add: The two numbers you are adding together are called addends. Read more...iWorksheets :13Study Guides :1Vocabulary :2
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.OA.D.8.2. Ability to take apart and combine numbers in a wide variety of ways.
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 :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
Addition FactsFreeWhen you add, you combine two or more numbers together to get ONE answer… one SUM. A sum is the answer to an addition problem. Read more...iWorksheets :9Study Guides :1Vocabulary :2
Addition FactsFreeWhat is Addition? Addition is taking two groups of objects and putting them together. When adding, the answer gets larger. When you add 0, the answer remains the same. <br>How to Add: The two numbers you are adding together are called addends. Read more...iWorksheets :13Study Guides :1Vocabulary :2
1.OA.D.8.3. Ability to make sense of quantity and be able to compare numbers.
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
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
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
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.OA.D.8.5. Ability to solve a variety of addition and subtraction word problems (CCSS, Page 88, Table 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
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

MD.MA.1.NBT. Number and Operations in Base Ten (NBT)

1.NBT.A. Extend the counting sequence.

1.NBT.A.1. Major Standard: Count to 120 starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.
1.NBT.A.1.2. Reading
1.NBT.A.1.2.a. Ability to explore visual representations of numerals, matching a visual representation of a set to a numeral.
Number WordsNumber words are the words you write for a number. Read more...iWorksheets :3Study Guides :1Vocabulary :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
1.NBT.A.1.2.b. Ability to read a written numeral.
Number WordsNumber words are the words you write for a number. Read more...iWorksheets :3Study Guides :1Vocabulary :1

1.NBT.B. Understand Place Value.

1.NBT.B.2. Major Standard: Understand that the two digits of a two-digit number represent amounts of tens and ones.
1.NBT.B.2.1. Ability to use base ten manipulatives (e.g., base ten blocks, DigiBlocks, connecting cubes, ten frames, interlocking base ten blocks) to represent two-digit numbers.
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
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
1.NBT.B.2.2. Knowledge of the connection between numerals, words, and quantities.
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
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
1.NBT.B.2.3. Knowledge that two-digit numbers are composed of bundles of tens and leftover ones.
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
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
1.NBT.B.2.4. Ability to count by tens and ones.
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
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
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 :4Study 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
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.NBT.B.2a. Major Standard: Understand that the two digits of a two-digit number represent amounts of tens and ones – Understand the following as a special case: 10 can be thought of as a bundle of ten ones–called a “ten”.
1.NBT.B.2a.1. Ability to use base ten manipulatives (e.g., base ten blocks, DigiBlocks, connecting cubes, ten frames, interlocking base ten blocks) to build and compare ten ones and ten.
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
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
1.NBT.B.2b. Major Standard: Understand that the two digits of a two-digit number represent amounts of tens and ones – Understand the following as a special case: The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.
1.NBT.B.2b.1. Ability to use base ten manipulatives (e.g., base ten blocks, Digi-Blocks, connecting cubes, ten frames, interlocking base ten blocks) to build and compare 11 to 19.
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
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
1.NBT.B.2b.2. Ability to match the concrete representations of 11 through 19 with the numerical representations.
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
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
1.NBT.B.2b.3. Ability to understand that numbers 11-19 represent one ten and some more ones.
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
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
1.NBT.B.2c. Major Standard: Understand that the two digits of a two-digit number represent amounts of tens and ones – Understand the following as a special case: The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).
1.NBT.B.2c.1. Ability to use base ten manipulatives (e.g., base ten blocks, DigiBlocks, Unifix Cubes, ten frames, interlocking base ten blocks) to build and model counting by tens.
Skip CountingSkip counting is when you SKIP a number or numbers when counting. Counting by 2s, 3s, 4s, 5, and 10s. Read more...iWorksheets :4Study 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
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
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.NBT.B.2c.2. Ability to skip count by 10s to 100 understanding that each ten counted represents that number of groups of ten.
Skip CountingSkip counting is when you SKIP a number or numbers when counting. Counting by 2s, 3s, 4s, 5, and 10s. Read more...iWorksheets :4Study 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
1.NBT.B.3. Major Standard: Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols &gt;, =, and &lt;.
1.NBT.B.3.1. Ability to apply their understanding of the value of tens and ones in order to compare the magnitude of two numbers.
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
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
1.NBT.B.3.2. Ability to use base ten manipulatives to represent the numbers and model the comparison of their values.
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
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
1.NBT.B.3.3. Ability to represent their reasoning about the comparison of two two-digit numbers using pictures, numbers, and words.
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
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
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
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.NBT.B.3.5. Ability to use ordinality to compare the placement of the numbers on the number line or 100s chart.
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
OrdinalsOrdinal numbers are numbers that are used to tell what order something is in. Read more...iWorksheets :4Study Guides :1Vocabulary :2
1.NBT.B.3.6. Knowledge of the symbols &gt;, =, &lt; and their meaning.
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
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

1.NBT.C. Use place value understanding and properties of operations to add and subtract.

1.NBT.C.4. Major Standard: Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones, and sometimes it is necessary to compose a ten.
1.NBT.C.4.1. Knowledge of addition and subtraction fact families.
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
1.NBT.C.4.2. Ability to model addition and subtraction using base ten manipulatives (e.g., base ten blocks, Digi-Blocks, Unifix cubes) and explain the process.
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 :3Study 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
Addition FactsFreeWhen you add, you combine two or more numbers together to get ONE answer… one SUM. A sum is the answer to an addition problem. Read more...iWorksheets :9Study 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
Addition FactsFreeWhat is Addition? Addition is taking two groups of objects and putting them together. When adding, the answer gets larger. When you add 0, the answer remains the same. <br>How to Add: The two numbers you are adding together are called addends. Read more...iWorksheets :13Study Guides :1Vocabulary :2
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.NBT.C.4.3. Knowledge of place value.
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
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
1.NBT.C.5. Major Standard: Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
1.NBT.C.5.1. Ability to use base ten manipulatives, number lines or hundreds charts to model finding 10 more and explain reasoning.
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
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
1.NBT.C.5.2. Knowledge of addition and subtraction fact families.
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
1.NBT.C.5.3. Ability to model addition using base ten manipulatives (e.g., base ten blocks, Digi-Blocks, connecting cubes) and explain the process.
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 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
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
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
Addition FactsFreeWhen you add, you combine two or more numbers together to get ONE answer… one SUM. A sum is the answer to an addition problem. Read more...iWorksheets :9Study 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
Addition FactsFreeWhat is Addition? Addition is taking two groups of objects and putting them together. When adding, the answer gets larger. When you add 0, the answer remains the same. <br>How to Add: The two numbers you are adding together are called addends. Read more...iWorksheets :13Study Guides :1Vocabulary :2
1.NBT.C.5.4. Knowledge of place value and skip counting by forward 10.
Skip CountingSkip counting is when you SKIP a number or numbers when counting. Counting by 2s, 3s, 4s, 5, and 10s. Read more...iWorksheets :4Study 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
1.NBT.C.6. Major Standard: Subtract multiples of 10 in the range of 10-90 from multiples of 10 in the range of 10-90 (positive or zero differences), using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
1.NBT.C.6.1. Ability to use base ten manipulatives, number lines or hundreds charts to model finding 10 less and explain reasoning.
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
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
1.NBT.C.6.2. Knowledge of addition and subtraction fact families.
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
1.NBT.C.6.3. Ability to model subtraction using base ten manipulatives (e.g., base ten blocks, Digi-Blocks, Unifix cubes) and explain the process.
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 :3Study 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
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.NBT.C.6.4. Knowledge of place value and skip counting by 10.
Skip CountingSkip counting is when you SKIP a number or numbers when counting. Counting by 2s, 3s, 4s, 5, and 10s. Read more...iWorksheets :4Study 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
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
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

MD.MA.1.MD. Measurement and Data (MD)

1.MD.A. Measure lengths indirectly and by iterating length units.

1.MD.A.2. Major Standard: Express the length of an object as a whole number of length units, by laying multiple copies of a shorter object (the length unit) end to end; understand that the length measurement of an object is the number of same-size length units that span it with no gaps or overlaps. Limit to contexts where the object being measured is spanned by a whole number of length units with no gaps or overlaps.
1.MD.A.2.1. Knowledge that length is the distance between the two endpoints of an object.
MeasurementMeasurement in inches, feet, centimeters, meters, cups, pints, quarts, gallons, liters, pounds, grams, and kilograms. Read more...iWorksheets :6Study Guides :1Vocabulary :3
Comparing ObjectsWhen you compare two objects, you identify how the objects are ALIKE and how they are DIFFERENT. Read more...iWorksheets :3Study 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
1.MD.A.2.2. Ability to identify a unit of measure.
MeasurementMeasurement in inches, feet, centimeters, meters, cups, pints, quarts, gallons, liters, pounds, grams, and kilograms. Read more...iWorksheets :6Study Guides :1Vocabulary :3
Comparing ObjectsWhen you compare two objects, you identify how the objects are ALIKE and how they are DIFFERENT. Read more...iWorksheets :3Study 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
1.MD.A.2.3. Knowledge of nonstandard (e.g., paper clips, eraser length, toothpicks) as well as standard units of measurement.
MeasurementMeasurement in inches, feet, centimeters, meters, cups, pints, quarts, gallons, liters, pounds, grams, and kilograms. Read more...iWorksheets :6Study Guides :1Vocabulary :3
Comparing ObjectsWhen you compare two objects, you identify how the objects are ALIKE and how they are DIFFERENT. Read more...iWorksheets :3Study 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

1.MD.B. Tell and write time.

1.MD.B.3. Additional Standard: Tell and write time in hours and half-hours using analog and digital clocks.
1.MD.B.3.1. Ability to apply knowledge of fractional wholes and halves to telling time.
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
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
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
TimeTell time to the nearest hour, half hour, and quarter hour. Read more...iWorksheets :8Study Guides :1Vocabulary :2
Telling TimeTime 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
1.MD.B.3.2. Ability to equate a number line to 12 with the face of a clock.
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
TimeTell time to the nearest hour, half hour, and quarter hour. Read more...iWorksheets :8Study Guides :1Vocabulary :2
Telling TimeTime 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
1.MD.B.3.3. Ability to match time on a digital clock with that on an analog clock.
TimeTell time to the nearest hour, half hour, and quarter hour. Read more...iWorksheets :8Study Guides :1Vocabulary :2
Telling TimeTime 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

1.MD.C. Represent and interpret data.

1.MD.C.4. Supporting Standard: Organize, represent, and interpret data with up to three categories; ask and answer questions about the total number of data points, how many in each category, and how many more or less are in one category than in another.
1.MD.C.4.3. Ability to answer questions about the data such as: ‘Which category has more?’ ‘Which category has less?’ ‘What is the favorite snack of our class?’ ‘How many more stickers does Sam have than John?’
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

MD.MA.1.G. Geometry (G)

1.G.A. Reason with shapes and their attributes.

1.G.A.1. Additional Standard: Distinguish between defining attributes (e.g., triangles are closed and three-sided) versus non-defining attributes (e.g., color, orientation, overall size); build and draw shapes to possess defining attributes.
1.G.A.1.1. Ability to sort shapes (e.g., attribute blocks, polygon figures) by shape, number of sides, size or number of angles.
ShapesFreeA shape is the form something takes. Read more...iWorksheets :12Study Guides :1Vocabulary :2
1.G.A.1.2. Ability to use geoboards, toothpicks, straws, paper and pencil, computer games to build shapes that possess the defining attributes.
ShapesFreeA shape is the form something takes. Read more...iWorksheets :12Study Guides :1Vocabulary :2
1.G.A.1.3. Ability to explain how two shapes are alike or how they are different from each other.
ShapesFreeA shape is the form something takes. Read more...iWorksheets :12Study Guides :1Vocabulary :2
1.G.A.3. Additional Standard: Partition circles and rectangles into two and four equal shares, describe the shares using the words halves, fourths, and quarters, and use the phrases half of, fourth of, and quarter of. Describe the whole as two of, or four of the shares. Understand for these examples that decomposing into more equal shares creates smaller shares.
1.G.A.3.3. Ability to model halves and fourths with concrete materials.
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
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
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

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