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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 24 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 640 to the nearest ten
2.Round 481 to the nearest ten
3.Round 515 to the nearest ten
4.Round 957 to the nearest ten
5.Round 214 to the nearest ten
6.Round 328 to the nearest ten
7.Round 749 to the nearest ten
8.Round 587 to the nearest ten
9.Round 657 to the nearest ten
10.Round 782 to the nearest ten
11.Round 273 to the nearest ten
12.Round 423 to the nearest ten

LessonPrint · 3.NBT.A.1 · Set 24 · free to copy for classroom use

Answer key — Round Three-Digit Numbers to Ten

Set 24. Prints on its own sheet.

  1. 1.640
  2. 2.480
  3. 3.520
  4. 4.960
  5. 5.210
  6. 6.330
  7. 7.750
  8. 8.590
  9. 9.660
  10. 10.780
  11. 11.270
  12. 12.420

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.