Grade 3 > Standards for Mathematical Practice > Operations & Algebraic Thinking > Solve problems involving the four operations, and identify and explain patterns in arithmetic > CCSS.MATH.CONTENT.3.OA.D.8
Solve two-step word problems using the four operations. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.
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CCSS.MATH.CONTENT.3.OA.D.8 teaching resources
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