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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: Alg 1. Solves addition and subtraction sentences where an unknown number is represented by a geometric shape (for example, 2 + Δ = 9).
Grade 2: Alg 1. Solves a variety of number sentences where the missing number is represented by a geometric shape (for example, 10-Δ=6).
Grade 4: Alg 1. Solves problems involving equations or simple inequalities using manipulatives, diagrams, or models, symbolic expressions, or written phrases.
Grade 5: Alg 1. Solves problems involving simple equations or inequalities using diagrams or models, symbolic expressions, or written phrases.
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