IXL | Estimate sums: round to tens | 3rd grade math

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Estimate the sum by rounding each number to the nearest ten and then adding.

57 + 14

The sum is approximately .

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Excellent!

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Teacher tools

Work it out

Not feeling ready yet? These can help:

Z.2Round to the nearest ten

N.3Add a multiple of 10 to a two-digit number

Lesson: Rounding numbers