6th Grade Estimating Sums, Differences and Products Worksheet — Level 3 — 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 3 — Practice Set 3 — Answers
Round each number first, then work out the estimate in your head.
1.Estimate 5,477 + 3,028 by rounding each number to the nearest 100.
Answer: 8,500
- 5,477 rounds to 5,500; 3,028 rounds to 3,000
- 5,500 + 3,000 = 8,500
The exact answer is 8,505, close to the estimate.
2.Estimate 81 × 22 by rounding each number to the nearest 10.
Answer: 1,600
- 81 rounds to 80; 22 rounds to 20
- 80 × 20 = 1,600
The exact answer is 1,782.
3.Estimate 17 × 6 by rounding 17 to the nearest 10.
Answer: 120
- 17 rounds to 20
- 20 × 6 = 120
The exact answer is 102.
4.Estimate 8,956 + 8,055 by rounding each number to the nearest 100.
Answer: 17,100
- 8,956 rounds to 9,000; 8,055 rounds to 8,100
- 9,000 + 8,100 = 17,100
The exact answer is 17,011, close to the estimate.
5.Estimate 29 × 24 by rounding each number to the nearest 10.
Answer: 600
- 29 rounds to 30; 24 rounds to 20
- 30 × 20 = 600
The exact answer is 696.
6.Estimate 65 × 8 by rounding 65 to the nearest 10.
Answer: 560
- 65 rounds to 70
- 70 × 8 = 560
The exact answer is 520.
7.Estimate 6,478 + 5,451 by rounding each number to the nearest 1,000.
Answer: 11,000
- 6,478 rounds to 6,000; 5,451 rounds to 5,000
- 6,000 + 5,000 = 11,000
The exact answer is 11,929, close to the estimate.
8.Estimate 59 × 35 by rounding each number to the nearest 10.
Answer: 2,400
- 59 rounds to 60; 35 rounds to 40
- 60 × 40 = 2,400
The exact answer is 2,065.
9.Estimate 65 × 72 by rounding each number to the nearest 10.
Answer: 4,900
- 65 rounds to 70; 72 rounds to 70
- 70 × 70 = 4,900
The exact answer is 4,680.
10.Estimate 1,325 + 9,201 by rounding each number to the nearest 1,000.
Answer: 10,000
- 1,325 rounds to 1,000; 9,201 rounds to 9,000
- 1,000 + 9,000 = 10,000
The exact answer is 10,526, close to the estimate.
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