Skip to content
LessonPrint

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 2 of 25 · the same problems every time you open this link.

Next set

One paper per pupil

12345678910111213141516171819202122232425

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 841 to the nearest ten
2.Round 434 to the nearest ten
3.Round 747 to the nearest ten
4.Round 903 to the nearest ten
5.Round 988 to the nearest ten
6.Round 933 to the nearest ten
7.Round 363 to the nearest ten
8.Round 687 to the nearest ten
9.Round 877 to the nearest ten
10.Round 263 to the nearest ten
11.Round 875 to the nearest ten
12.Round 906 to the nearest ten

LessonPrint · 3.NBT.A.1 · Set 2 · free to copy for classroom use

Answer key — Round then Estimate

Set 2. Prints on its own sheet.

  1. 1.840
  2. 2.430
  3. 3.750
  4. 4.900
  5. 5.990
  6. 6.930
  7. 7.360
  8. 8.690
  9. 9.880
  10. 10.260
  11. 11.880
  12. 12.910

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