Name ______________________Date ____________Score ____ / 12
Grade 3 practice
Rounding to the nearest 10 or 100 · 1–6
Round each number.
1.Round 482 to the nearest ten.
2.Round 821 to the nearest ten.
3.Round 757 to the nearest ten.
4.Round 339 to the nearest ten.
5.Round 606 to the nearest ten.
6.Round 401 to the nearest ten.
Estimating sums and differences · 7–12
Estimate: round each number to the place shown, then add or subtract.
7.To the nearest hundred: 638 + 631
8.To the nearest hundred: 683 + 893
9.To the nearest hundred: 297 + 750
10.To the nearest hundred: 725 + 855
11.To the nearest hundred: 151 + 198
12.To the nearest hundred: 778 + 395
Answer key — Grade 3 practice
Rounding to the nearest 10 or 100
Estimating sums and differences
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