## ◂Math Worksheets and Study Guides First Grade. Ordering Numbers and Objects by Size

### The resources above correspond to the standards listed below:

#### Maryland College and Career-Ready Standards

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.1.3. Ability to make sense of quantity and be able to compare numbers.
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.
1.OA.D.7.3. Understand the equal sign means “is the same as”.
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.8.3. Ability to make sense of quantity and be able to compare numbers.
MD.MA.1.NBT. Number and Operations in Base Ten (NBT)
1.NBT.B. Understand Place Value.
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.3.3. Ability to represent their reasoning about the comparison of two two-digit numbers using pictures, numbers, and words.
1.NBT.B.3.6. Knowledge of the symbols &gt;, =, &lt; and their meaning.