Year 9 Rounding Decimals Worksheet — Level 1 — 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 1 — 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 235.4 to the nearest whole number.
Answer: 235
- Look at the tenths digit: 4
- Less than 5, so round down
2.Round 353.4 to the nearest whole number.
Answer: 353
- Look at the tenths digit: 4
- Less than 5, so round down
3.Round 818.9 to the nearest whole number.
Answer: 819
- Look at the tenths digit: 9
- 5 or more, so round up
4.Round 558.3 to the nearest whole number.
Answer: 558
- Look at the tenths digit: 3
- Less than 5, so round down
5.Round 11.56 to the nearest whole number.
Answer: 12
- Look at the tenths digit: 5
- 5 or more, so round up
6.Round 27.84 to the nearest whole number.
Answer: 28
- Look at the tenths digit: 8
- 5 or more, so round up
7.Round 332.1 to the nearest whole number.
Answer: 332
- Look at the tenths digit: 1
- Less than 5, so round down
8.Round 70.47 to 1 decimal place.
Answer: 70.5
- Look at the hundredths digit: 7
- 5 or more, so round up
9.Round 385.2 to the nearest whole number.
Answer: 385
- Look at the tenths digit: 2
- Less than 5, so round down
10.Round 47.02 to 1 decimal place.
Answer: 47.0
- Look at the hundredths digit: 2
- Less than 5, so round down
11.Round 406.6 to the nearest whole number.
Answer: 407
- Look at the tenths digit: 6
- 5 or more, so round up
12.Round 70.74 to 1 decimal place.
Answer: 70.7
- Look at the hundredths digit: 4
- 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.