Rounding and estimating: printable worksheets
Round to the nearest ten or hundred on a number line and estimate sums.
Sample worksheet
The first 6 problems of a real worksheet, made the way the builder makes it. Open it in the builder to change the number of problems, the difficulty and the layout, then print.
1.
Round 78 to the nearest ten:
2.
Round 77 to the nearest ten:
3.
Round 37 to the nearest ten:
4.
Round 47 to the nearest ten:
5.
Round 62 to the nearest ten:
6.
Round 48 to the nearest ten:
Show answers
1.80
2.80
3.40
4.50
5.60
6.50
What students practise
I can round numbers and use rounding to estimate.
Students round whole numbers to a given place using a number line or place value, and estimate sums and differences.
Key words
- round
- change a number to a nearby friendly number
- estimate
- an answer that is close to the exact answer
- halfway
- the point exactly between two friendly numbers
Common mistakes
- Always rounds down by dropping digits.
- Looks at the wrong digit to decide.
- Changes the digits to the left of the rounding place.
Related topics
- Before this: Place value to 999 (Grade 2)
- Next: Rounding to any place (Grade 3)