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 19 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 331 to the nearest ten
2.Round 773 to the nearest ten
3.Round 213 to the nearest ten
4.Round 394 to the nearest ten
5.Round 957 to the nearest ten
6.Round 376 to the nearest ten
7.Round 741 to the nearest ten
8.Round 713 to the nearest ten
9.Round 455 to the nearest ten
10.Round 257 to the nearest ten
11.Round 159 to the nearest ten
12.Round 296 to the nearest ten

LessonPrint · 3.NBT.A.1 · Set 19 · free to copy for classroom use

Answer key — Round then Estimate

Set 19. Prints on its own sheet.

  1. 1.330
  2. 2.770
  3. 3.210
  4. 4.390
  5. 5.960
  6. 6.380
  7. 7.740
  8. 8.710
  9. 9.460
  10. 10.260
  11. 11.160
  12. 12.300

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