Skip to content
LessonPrint

Rounding and Estimating is a free printable Grade 5 math worksheet on using rounding to check a calculation, aligned to Common Core standard 5.NBT.A.4. It prints 8 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students 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 student

12345678910111213141516171819202122232425

Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Rounding and Estimating

5.NBT.A.4

NameDate

Estimate first, then work it out.

1.Estimate 9.09 + 15.73 by rounding each number to the nearest whole number, then work it out.
2.Estimate 17.63 + 16.28 by rounding each number to the nearest whole number, then work it out.
3.Estimate 3.33 + 2.67 by rounding each number to the nearest whole number, then work it out.
4.Estimate 4.40 + 27.64 by rounding each number to the nearest whole number, then work it out.
5.Estimate 11.21 − 8.85 by rounding each number to the nearest whole number, then work it out.
6.Estimate 16.18 − 5.46 by rounding each number to the nearest whole number, then work it out.
7.Estimate 12.30 − 4.80 by rounding each number to the nearest whole number, then work it out.
8.Estimate 26.93 − 7.92 by rounding each number to the nearest whole number, then work it out.

LessonPrint · 5.NBT.A.4 · Set 10 · free to copy for classroom use

Answer key — Rounding and Estimating

Set 10. Prints on its own sheet.

  1. 1.about 25; exactly 24.82
  2. 2.about 34; exactly 33.91
  3. 3.about 6; exactly 6
  4. 4.about 32; exactly 32.04
  5. 5.about 2; exactly 2.36
  6. 6.about 11; exactly 10.72
  7. 7.about 7; exactly 7.5
  8. 8.about 19; exactly 19.01

Last reviewed 2026-09-05. Aligned to 5.NBT.A.4 of the Common Core State Standards for Mathematics.