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 10 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 930 to the nearest ten
2.Round 203 to the nearest ten
3.Round 952 to the nearest ten
4.Round 780 to the nearest ten
5.Round 147 to the nearest ten
6.Round 895 to the nearest ten
7.Round 151 to the nearest ten
8.Round 720 to the nearest ten
9.Round 407 to the nearest ten
10.Round 688 to the nearest ten
11.Round 445 to the nearest ten
12.Round 617 to the nearest ten

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

Answer key — Round then Estimate

Set 10. Prints on its own sheet.

  1. 1.930
  2. 2.200
  3. 3.950
  4. 4.780
  5. 5.150
  6. 6.900
  7. 7.150
  8. 8.720
  9. 9.410
  10. 10.690
  11. 11.450
  12. 12.620

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