Year 9 Rounding Decimals Worksheet — Level 3 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 9 decimals worksheet.
Success TutoringWorksheetsAnswer sheetYear 9 · Mathematics · DecimalsYear 9 Rounding Decimals Worksheet — Level 3 — Practice Set 2 — 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 70.882 to the nearest whole number.
Answer: 71
- Look at the tenths digit: 8
- 5 or more, so round up
2.Round 0.2731 to 2 significant figures.
Answer: 0.27
- Count 2 figures from the first non-zero digit
- The next digit is 3: less than 5, so round down
3.Round 75.034 to 1 decimal place.
Answer: 75.0
- Look at the hundredths digit: 3
- Less than 5, so round down
4.Round 0.652 to 2 significant figures.
Answer: 0.65
- Count 2 figures from the first non-zero digit
- The next digit is 2: less than 5, so round down
5.Round 54.367 to 2 decimal places.
Answer: 54.37
- Look at the thousandths digit: 7
- 5 or more, so round up
6.Round 935,132 to 1 significant figure.
Answer: 900,000
- Count 1 figure from the first non-zero digit
- The next digit is 3: less than 5, so round down
7.Round 54.523 to 2 decimal places.
Answer: 54.52
- Look at the thousandths digit: 3
- Less than 5, so round down
8.Round 278,739 to 3 significant figures.
Answer: 279,000
- Count 3 figures from the first non-zero digit
- The next digit is 7: 5 or more, so round up
9.Round 17.195 to 1 decimal place.
Answer: 17.2
- Look at the hundredths digit: 9
- 5 or more, so round up
10.Round 458,276 to 2 significant figures.
Answer: 460,000
- Count 2 figures from the first non-zero digit
- The next digit is 8: 5 or more, so round up
11.Round 45.636 to the nearest whole number.
Answer: 46
- Look at the tenths digit: 6
- 5 or more, so round up
12.Round 466,271 to 3 significant figures.
Answer: 466,000
- Count 3 figures from the first non-zero digit
- The next digit is 2: 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.