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Estimate the sum by rounding to the nearest ten and check your work.

Worksheet with math problems estimating sums by rounding numbers to the nearest ten, including examples like 50 + 36 ≈ 73 and 81 + 64 ≈ 81.

Worksheet with math problems estimating sums by rounding numbers to the nearest ten, including examples like 50 + 36 ≈ 73 and 81 + 64 ≈ 81.

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