6th Grade Estimating Sums, Differences and Products Worksheet — Level 1 — Practice Set 3 — 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 3 — Answers
Round each number first, then work out the estimate in your head.
1.Estimate 24 + 56 by rounding each number to the nearest 10.
Answer: 80
- 24 rounds to 20; 56 rounds to 60
- 20 + 60 = 80
The exact answer is 80, close to the estimate.
2.Estimate 61 − 15 by rounding each number to the nearest 10.
Answer: 40
- 61 rounds to 60; 15 rounds to 20
- 60 − 20 = 40
The exact answer is 46, close to the estimate.
3.Estimate 79 − 52 by rounding each number to the nearest 10.
Answer: 30
- 79 rounds to 80; 52 rounds to 50
- 80 − 50 = 30
The exact answer is 27, close to the estimate.
4.Estimate 52 − 34 by rounding each number to the nearest 10.
Answer: 20
- 52 rounds to 50; 34 rounds to 30
- 50 − 30 = 20
The exact answer is 18, close to the estimate.
5.Estimate 46 + 39 by rounding each number to the nearest 10.
Answer: 90
- 46 rounds to 50; 39 rounds to 40
- 50 + 40 = 90
The exact answer is 85, close to the estimate.
6.Estimate 48 − 32 by rounding each number to the nearest 10.
Answer: 20
- 48 rounds to 50; 32 rounds to 30
- 50 − 30 = 20
The exact answer is 16, close to the estimate.
7.Estimate 39 + 88 by rounding each number to the nearest 10.
Answer: 130
- 39 rounds to 40; 88 rounds to 90
- 40 + 90 = 130
The exact answer is 127, close to the estimate.
8.Estimate 13 + 29 by rounding each number to the nearest 10.
Answer: 40
- 13 rounds to 10; 29 rounds to 30
- 10 + 30 = 40
The exact answer is 42, close to the estimate.
9.Estimate 94 − 17 by rounding each number to the nearest 10.
Answer: 70
- 94 rounds to 90; 17 rounds to 20
- 90 − 20 = 70
The exact answer is 77, close to the estimate.
10.Estimate 52 + 96 by rounding each number to the nearest 10.
Answer: 150
- 52 rounds to 50; 96 rounds to 100
- 50 + 100 = 150
The exact answer is 148, 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.