Description
Lesson 5-2
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Highlights
Description
Lesson 5-2
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Questions & Answers
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Standards
to see state-specific standards (only available in the US).
CCSS1.OA.D.7
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.
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