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OAS 3.N.2.4 Worksheets

OAS 3.N.2.4 (Oklahoma, 3rd Grade): "Recognize when to round numbers and apply understanding to estimate sums and differences to the nearest ten thousand, thousand, hundred, and ten." The worksheets below practice this standard. Each one is a free printable PDF with an answer key, comes in multiple versions, and can also be assigned digitally - no login or account needed.

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Numbers & Operations (N) 3.N.2 Solve real-world and mathematical problems using addition, subtraction, multiplication, and division. 3.N.2.4Recognize when to round numbers and apply understanding to estimate sums and differences to the nearest ten thousand, thousand, hundred, and ten.

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3.N.2.4

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Estimating Sums and Differences by Rounding (Word Problems)

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Round each number to the given place value before adding or subtracting.
Estimate sums and differences to the nearest ten, hundred, thousand, or ten thousand.
Recognize when an estimate is useful instead of an exact answer.