Year 5 Rounding Decimals Worksheet — Level 3 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 5 decimals worksheet.
Success TutoringWorksheetsAnswer sheetYear 5 · Mathematics · DecimalsYear 5 Rounding Decimals Worksheet — Level 3 — Practice Set 3 — Answers
Look at the digit just after the place you are rounding to: 5 or more rounds up, less than 5 rounds down.
1.Round 35.223 to 1 decimal place.
Answer: 35.2
- Look at the hundredths digit: 2
- Less than 5, so round down
2.Round 252,379 to 3 significant figures.
Answer: 252,000
- Count 3 figures from the first non-zero digit
- The next digit is 3: less than 5, so round down
3.Round 37.832 to the nearest whole number.
Answer: 38
- Look at the tenths digit: 8
- 5 or more, so round up
4.Round 1,439 to 2 significant figures.
Answer: 1,400
- Count 2 figures from the first non-zero digit
- The next digit is 3: less than 5, so round down
5.Round 54.077 to the nearest whole number.
Answer: 54
- Look at the tenths digit: 0
- Less than 5, so round down
6.Round 0.5209 to 3 significant figures.
Answer: 0.521
- Count 3 figures from the first non-zero digit
- The next digit is 9: 5 or more, so round up
7.Round 26.659 to 1 decimal place.
Answer: 26.7
- Look at the hundredths digit: 5
- 5 or more, so round up
8.Round 2.514 to 1 significant figure.
Answer: 3
- Count 1 figure from the first non-zero digit
- The next digit is 5: 5 or more, so round up
9.Round 99.721 to 2 decimal places.
Answer: 99.72
- Look at the thousandths digit: 1
- Less than 5, so round down
10.Round 0.01522 to 1 significant figure.
Answer: 0.02
- Count 1 figure from the first non-zero digit
- The next digit is 5: 5 or more, so round up
11.Round 6.614 to 2 decimal places.
Answer: 6.61
- Look at the thousandths digit: 4
- Less than 5, so round down
12.Round 0.1035 to 2 significant figures.
Answer: 0.10
- Count 2 figures from the first non-zero digit
- The next digit is 3: less than 5, so round down
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
- Celebrate what went well first, then pick one thing to work on next.