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Round then Estimate is a free printable Grade 3 maths worksheet on using rounding to check an answer, aligned to Common Core standard 3.NBT.A.1. It prints 12 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two pupils in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 13 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Round then Estimate

3.NBT.A.1

NameDate

Round each number.

1.Round 467 to the nearest ten
2.Round 617 to the nearest ten
3.Round 681 to the nearest ten
4.Round 405 to the nearest ten
5.Round 616 to the nearest ten
6.Round 623 to the nearest ten
7.Round 897 to the nearest ten
8.Round 483 to the nearest ten
9.Round 534 to the nearest ten
10.Round 430 to the nearest ten
11.Round 810 to the nearest ten
12.Round 896 to the nearest ten

LessonPrint · 3.NBT.A.1 · Set 13 · free to copy for classroom use

Answer key — Round then Estimate

Set 13. Prints on its own sheet.

  1. 1.470
  2. 2.620
  3. 3.680
  4. 4.410
  5. 5.620
  6. 6.620
  7. 7.900
  8. 8.480
  9. 9.530
  10. 10.430
  11. 11.810
  12. 12.900

Last reviewed 2026-09-05. Aligned to 3.NBT.A.1 of the Common Core State Standards for mathematics.