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Round Three-Digit Numbers to Ten is a free printable Grade 3 maths worksheet on rounding where the hundreds stay put, 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 25 of 25 · the same problems every time you open this link.

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One paper per pupil

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

Round Three-Digit Numbers to Ten

3.NBT.A.1

NameDate

Round each number.

1.Round 171 to the nearest ten
2.Round 455 to the nearest ten
3.Round 173 to the nearest ten
4.Round 624 to the nearest ten
5.Round 649 to the nearest ten
6.Round 337 to the nearest ten
7.Round 815 to the nearest ten
8.Round 178 to the nearest ten
9.Round 773 to the nearest ten
10.Round 888 to the nearest ten
11.Round 373 to the nearest ten
12.Round 820 to the nearest ten

LessonPrint · 3.NBT.A.1 · Set 25 · free to copy for classroom use

Answer key — Round Three-Digit Numbers to Ten

Set 25. Prints on its own sheet.

  1. 1.170
  2. 2.460
  3. 3.170
  4. 4.620
  5. 5.650
  6. 6.340
  7. 7.820
  8. 8.180
  9. 9.770
  10. 10.890
  11. 11.370
  12. 12.820

More practice for 3.NBT.A.1

Round numbers to the nearest ten or hundred.

Teaching this next? Rounding to the Nearest Ten or Hundred is the 45-minute plan for it, with the misconceptions to expect.

All Grade 3 worksheets

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