Round 47 to the nearest ten.
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Round both 21 and 7 to the nearest ten.
21 rounds to and 7 rounds to . Then, add the rounded numbers to estimate the sum. The sum of the rounded numbers is |
Round both 13 and 8 to the nearest ten.
13 rounds to and 8 rounds to . Then, add the rounded numbers to estimate the sum. The sum of the rounded numbers is |
Round both 31 and 59 to the nearest ten.
31 rounds to and 59 rounds to . Then, add the rounded numbers to estimate the sum. The sum of the rounded numbers is |