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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 16 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 194 to the nearest ten
2.Round 522 to the nearest ten
3.Round 378 to the nearest ten
4.Round 582 to the nearest ten
5.Round 250 to the nearest ten
6.Round 590 to the nearest ten
7.Round 701 to the nearest ten
8.Round 126 to the nearest ten
9.Round 977 to the nearest ten
10.Round 938 to the nearest ten
11.Round 851 to the nearest ten
12.Round 321 to the nearest ten

LessonPrint · 3.NBT.A.1 · Set 16 · free to copy for classroom use

Answer key — Round then Estimate

Set 16. Prints on its own sheet.

  1. 1.190
  2. 2.520
  3. 3.380
  4. 4.580
  5. 5.250
  6. 6.590
  7. 7.700
  8. 8.130
  9. 9.980
  10. 10.940
  11. 11.850
  12. 12.320

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