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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 10 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 673 to the nearest ten
2.Round 475 to the nearest ten
3.Round 228 to the nearest ten
4.Round 145 to the nearest ten
5.Round 890 to the nearest ten
6.Round 596 to the nearest ten
7.Round 152 to the nearest ten
8.Round 670 to the nearest ten
9.Round 956 to the nearest ten
10.Round 210 to the nearest ten
11.Round 537 to the nearest ten
12.Round 812 to the nearest ten

LessonPrint · 3.NBT.A.1 · Set 10 · free to copy for classroom use

Answer key — Round Three-Digit Numbers to Ten

Set 10. Prints on its own sheet.

  1. 1.670
  2. 2.480
  3. 3.230
  4. 4.150
  5. 5.890
  6. 6.600
  7. 7.150
  8. 8.670
  9. 9.960
  10. 10.210
  11. 11.540
  12. 12.810

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.