Rounding and estimation
Practise rounding to tens, hundreds, thousands, and ten-thousands, then estimate sums and differences.
How to solve this
- Choose the place you are rounding to, then look one digit to the right.
- Digits 0-4 keep the rounding digit the same; digits 5-9 increase it by one.
- For an estimate such as 4920 + 3110, round to 5000 + 3000 and expect an answer near 8000.
Examples
Round 3482 to the nearest hundred
3500
48,230 rounded to the nearest thousand
48,000
4920 + 3110 estimated
8000
Practice problems with answers
Solve these problems on paper or out loud, then check the answer key. The online practice and the printable worksheet give a new set every time.
- 390 347 ≈ ___ (to nearest 1 000)
- 39 250 + 2 126 = ___
- 19 029 - 8 945 = ___
- 1 101 × 8 = ___
- 81 747 ≈ ___ (to nearest 100)
- 39 191 ≈ ___ (to nearest 10 000)
- 251 265 ≈ ___ (to nearest 10 000)
- 27 195 + 8 323 = ___
Show answers
- 390 000
- 41 376
- 10 084
- 8 808
- 81 700
- 40 000
- 250 000
- 35 518