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Understanding estimation techniques using different properties of operations.

Mapped to CCSS Section# 4.OA.A.3, 4.NBT.A.3

Solve multistep word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. 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.,Use place value understanding to round multi-digit whole numbers to any place.
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