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Missing Term
Given an equation, supply the missing term. The equations are either addition or subtraction problems.
This topic aligns to the following state standards
Grade 1: Num 1.1.3 Write, model, and describe one-step addition and subtraction problems.
Grade 2: Alg 2.2.7 Model, explain and solve a number sentence involving addition and subtraction.
Grade 3: Alg 2.3.3 Identify missing terms and missing numbers in open number sentences involving number facts in addition and subtraction.
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