# 1st Grade Common Core: 1.OA.7

Common Core Identifier: 1.OA.7 / Grade: 1
Curriculum: Operations And Algebraic Thinking: Work With Addition And Subtraction Equations.
Detail: 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.
4 Common Core State Standards (CCSS) aligned worksheets found:
Students must determine which facts are correct, and which ones are incorrect. They write the sums for each incorrect fact.
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Tell whether each addition or subtraction statement is true or false? This activity focuses on the meaning of the equal sign in an equation.
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Practice recognizing and working with the properties of addition problems. This is a good introductory worksheet that contains only simple 1 and 2-digit numbers.
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