3.OA.8
Solve and create two-step word problems using any of the four operations. Represent these problems using equations with a symbol (box, circle, question mark) standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.
Example Problems
Khan Academy Resources2-step estimation word problemsAdd and subtract within 1000 word problems2-step word problemsRepresent 2-step word problems with equations2-step word problem: runningOrder of operations (2-step expressions)2-step word problem: trufflesSetting up 2-step word problems2-step word problem: theater2-step estimation word problems

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