6th Grade Estimating Sums, Differences and Products Worksheet — Level 1 — 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 — Answers
Round each number first, then work out the estimate in your head.
1.Estimate 89 + 46 by rounding each number to the nearest 10.
Answer: 140
- 89 rounds to 90; 46 rounds to 50
- 90 + 50 = 140
The exact answer is 135, close to the estimate.
2.Estimate 93 − 66 by rounding each number to the nearest 10.
Answer: 20
- 93 rounds to 90; 66 rounds to 70
- 90 − 70 = 20
The exact answer is 27, close to the estimate.
3.Estimate 92 + 91 by rounding each number to the nearest 10.
Answer: 180
- 92 rounds to 90; 91 rounds to 90
- 90 + 90 = 180
The exact answer is 183, close to the estimate.
4.Estimate 54 + 77 by rounding each number to the nearest 10.
Answer: 130
- 54 rounds to 50; 77 rounds to 80
- 50 + 80 = 130
The exact answer is 131, close to the estimate.
5.Estimate 89 + 81 by rounding each number to the nearest 10.
Answer: 170
- 89 rounds to 90; 81 rounds to 80
- 90 + 80 = 170
The exact answer is 170, close to the estimate.
6.Estimate 96 − 86 by rounding each number to the nearest 10.
Answer: 10
- 96 rounds to 100; 86 rounds to 90
- 100 − 90 = 10
The exact answer is 10, close to the estimate.
7.Estimate 38 − 24 by rounding each number to the nearest 10.
Answer: 20
- 38 rounds to 40; 24 rounds to 20
- 40 − 20 = 20
The exact answer is 14, close to the estimate.
8.Estimate 94 − 18 by rounding each number to the nearest 10.
Answer: 70
- 94 rounds to 90; 18 rounds to 20
- 90 − 20 = 70
The exact answer is 76, close to the estimate.
9.Estimate 88 − 74 by rounding each number to the nearest 10.
Answer: 20
- 88 rounds to 90; 74 rounds to 70
- 90 − 70 = 20
The exact answer is 14, close to the estimate.
10.Estimate 67 − 63 by rounding each number to the nearest 10.
Answer: 10
- 67 rounds to 70; 63 rounds to 60
- 70 − 60 = 10
The exact answer is 4, close to the estimate.
Marking tips
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