3.OA.D.8

6b9cbaef-d7cc-11e8-824f-0242ac160002 6b9e9d1d-d7cc-11e8-824f-0242ac160002 6b9b1a1b-d7cc-11e8-824f-0242ac160002 3.OA.D 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.

Propose a mapping

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