6th Grade Estimating Sums, Differences and Products Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 6th Grade place value worksheet.
Success TutoringWorksheetsAnswer sheet6th Grade · Mathematics · Place Value6th Grade Estimating Sums, Differences and Products Worksheet — Level 1 — Practice Set 4 — Answers
Round each number first, then work out the estimate in your head.
1.Estimate 56 − 53 by rounding each number to the nearest 10.
Answer: 10
- 56 rounds to 60; 53 rounds to 50
- 60 − 50 = 10
The exact answer is 3, close to the estimate.
2.Estimate 56 + 48 by rounding each number to the nearest 10.
Answer: 110
- 56 rounds to 60; 48 rounds to 50
- 60 + 50 = 110
The exact answer is 104, close to the estimate.
3.Estimate 92 − 29 by rounding each number to the nearest 10.
Answer: 60
- 92 rounds to 90; 29 rounds to 30
- 90 − 30 = 60
The exact answer is 63, close to the estimate.
4.Estimate 85 − 45 by rounding each number to the nearest 10.
Answer: 40
- 85 rounds to 90; 45 rounds to 50
- 90 − 50 = 40
The exact answer is 40, close to the estimate.
5.Estimate 93 + 85 by rounding each number to the nearest 10.
Answer: 180
- 93 rounds to 90; 85 rounds to 90
- 90 + 90 = 180
The exact answer is 178, close to the estimate.
6.Estimate 83 − 13 by rounding each number to the nearest 10.
Answer: 70
- 83 rounds to 80; 13 rounds to 10
- 80 − 10 = 70
The exact answer is 70, close to the estimate.
7.Estimate 82 + 94 by rounding each number to the nearest 10.
Answer: 170
- 82 rounds to 80; 94 rounds to 90
- 80 + 90 = 170
The exact answer is 176, close to the estimate.
8.Estimate 83 − 14 by rounding each number to the nearest 10.
Answer: 70
- 83 rounds to 80; 14 rounds to 10
- 80 − 10 = 70
The exact answer is 69, close to the estimate.
9.Estimate 73 + 86 by rounding each number to the nearest 10.
Answer: 160
- 73 rounds to 70; 86 rounds to 90
- 70 + 90 = 160
The exact answer is 159, close to the estimate.
10.Estimate 24 + 77 by rounding each number to the nearest 10.
Answer: 100
- 24 rounds to 20; 77 rounds to 80
- 20 + 80 = 100
The exact answer is 101, close to the estimate.
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.