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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 7 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 879 to the nearest ten
2.Round 982 to the nearest ten
3.Round 135 to the nearest ten
4.Round 499 to the nearest ten
5.Round 925 to the nearest ten
6.Round 147 to the nearest ten
7.Round 723 to the nearest ten
8.Round 874 to the nearest ten
9.Round 948 to the nearest ten
10.Round 497 to the nearest ten
11.Round 757 to the nearest ten
12.Round 700 to the nearest ten

LessonPrint · 3.NBT.A.1 · Set 7 · free to copy for classroom use

Answer key — Round then Estimate

Set 7. Prints on its own sheet.

  1. 1.880
  2. 2.980
  3. 3.140
  4. 4.500
  5. 5.930
  6. 6.150
  7. 7.720
  8. 8.870
  9. 9.950
  10. 10.500
  11. 11.760
  12. 12.700

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