Year 9 Rounding Decimals Worksheet — Level 3 — Answers
Answer sheet with worked solutions for the Year 9 decimals worksheet.
Success TutoringWorksheetsAnswer sheetYear 9 · Mathematics · DecimalsYear 9 Rounding Decimals Worksheet — Level 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 77.251 to the nearest whole number.
Answer: 77
- Look at the tenths digit: 2
- Less than 5, so round down
2.Round 0.00102 to 1 significant figure.
Answer: 0.001
- Count 1 figure from the first non-zero digit
- The next digit is 0: less than 5, so round down
3.Round 38.157 to 1 decimal place.
Answer: 38.2
- Look at the hundredths digit: 5
- 5 or more, so round up
4.Round 0.9466 to 1 significant figure.
Answer: 0.9
- Count 1 figure from the first non-zero digit
- The next digit is 4: less than 5, so round down
5.Round 13.921 to 1 decimal place.
Answer: 13.9
- Look at the hundredths digit: 2
- Less than 5, so round down
6.Round 0.7509 to 2 significant figures.
Answer: 0.75
- Count 2 figures from the first non-zero digit
- The next digit is 0: less than 5, so round down
7.Round 60.373 to 1 decimal place.
Answer: 60.4
- Look at the hundredths digit: 7
- 5 or more, so round up
8.Round 0.5368 to 1 significant figure.
Answer: 0.5
- Count 1 figure from the first non-zero digit
- The next digit is 3: less than 5, so round down
9.Round 66.211 to 1 decimal place.
Answer: 66.2
- Look at the hundredths digit: 1
- Less than 5, so round down
10.Round 0.1328 to 2 significant figures.
Answer: 0.13
- Count 2 figures from the first non-zero digit
- The next digit is 2: less than 5, so round down
11.Round 68.215 to the nearest whole number.
Answer: 68
- Look at the tenths digit: 2
- Less than 5, so round down
12.Round 8.877 to 2 significant figures.
Answer: 8.9
- Count 2 figures from the first non-zero digit
- The next digit is 7: 5 or more, so round up
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.
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