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1.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? $6 = 6$, $7 = 8 - 1$, $5 + 2 = 2 + 5$, $4 + 1 = 5 + 2$.

Tasks

Valid Equalities?
Equality Number Sentences
Using lengths to represent equality
The Very Hungry Caterpillar
20 Tickets