5th Grade Rounding Decimals Worksheet — Level 3 — Answers
Answer sheet with worked solutions for the 5th Grade decimals worksheet.
Success TutoringWorksheetsAnswer sheet5th Grade · Mathematics · Decimals5th Grade 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 30.124 to the nearest whole number.
Answer: 30
- Look at the tenths digit: 1
- Less than 5, so round down
2.Round 945,981 to 3 significant figures.
Answer: 946,000
- Count 3 figures from the first non-zero digit
- The next digit is 9: 5 or more, so round up
3.Round 75.421 to the nearest whole number.
Answer: 75
- Look at the tenths digit: 4
- Less than 5, so round down
4.Round 0.5975 to 2 significant figures.
Answer: 0.60
- Count 2 figures from the first non-zero digit
- The next digit is 7: 5 or more, so round up
5.Round 86.668 to the nearest whole number.
Answer: 87
- Look at the tenths digit: 6
- 5 or more, so round up
6.Round 1.526 to 3 significant figures.
Answer: 1.53
- Count 3 figures from the first non-zero digit
- The next digit is 6: 5 or more, so round up
7.Round 27.606 to the nearest whole number.
Answer: 28
- Look at the tenths digit: 6
- 5 or more, so round up
8.Round 23,943 to 3 significant figures.
Answer: 23,900
- Count 3 figures from the first non-zero digit
- The next digit is 4: less than 5, so round down
9.Round 20.896 to 1 decimal place.
Answer: 20.9
- Look at the hundredths digit: 9
- 5 or more, so round up
10.Round 155,261 to 1 significant figure.
Answer: 200,000
- Count 1 figure from the first non-zero digit
- The next digit is 5: 5 or more, so round up
11.Round 48.503 to 2 decimal places.
Answer: 48.50
- Look at the thousandths digit: 3
- Less than 5, so round down
12.Round 0.1376 to 3 significant figures.
Answer: 0.138
- Count 3 figures from the first non-zero digit
- The next digit is 6: 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.
- Celebrate what went well first, then pick one thing to work on next.