6th Grade Estimating Sums, Differences and Products Worksheet — Level 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 — Answers
Round each number first, then work out the estimate in your head.
1.Estimate 6,307 − 4,902 by rounding each number to the nearest 100.
Answer: 1,400
- 6,307 rounds to 6,300; 4,902 rounds to 4,900
- 6,300 − 4,900 = 1,400
The exact answer is 1,405, close to the estimate.
2.Estimate 72 × 78 by rounding each number to the nearest 10.
Answer: 5,600
- 72 rounds to 70; 78 rounds to 80
- 70 × 80 = 5,600
The exact answer is 5,616.
3.Estimate 29 × 84 by rounding each number to the nearest 10.
Answer: 2,400
- 29 rounds to 30; 84 rounds to 80
- 30 × 80 = 2,400
The exact answer is 2,436.
4.Estimate 2,804 + 4,058 by rounding each number to the nearest 1,000.
Answer: 7,000
- 2,804 rounds to 3,000; 4,058 rounds to 4,000
- 3,000 + 4,000 = 7,000
The exact answer is 6,862, close to the estimate.
5.Estimate 73 × 45 by rounding each number to the nearest 10.
Answer: 3,500
- 73 rounds to 70; 45 rounds to 50
- 70 × 50 = 3,500
The exact answer is 3,285.
6.Estimate 61 × 69 by rounding each number to the nearest 10.
Answer: 4,200
- 61 rounds to 60; 69 rounds to 70
- 60 × 70 = 4,200
The exact answer is 4,209.
7.Estimate 9,920 + 3,683 by rounding each number to the nearest 1,000.
Answer: 14,000
- 9,920 rounds to 10,000; 3,683 rounds to 4,000
- 10,000 + 4,000 = 14,000
The exact answer is 13,603, close to the estimate.
8.Estimate 47 × 58 by rounding each number to the nearest 10.
Answer: 3,000
- 47 rounds to 50; 58 rounds to 60
- 50 × 60 = 3,000
The exact answer is 2,726.
9.Estimate 49 × 4 by rounding 49 to the nearest 10.
Answer: 200
- 49 rounds to 50
- 50 × 4 = 200
The exact answer is 196.
10.Estimate 9,123 + 7,248 by rounding each number to the nearest 100.
Answer: 16,300
- 9,123 rounds to 9,100; 7,248 rounds to 7,200
- 9,100 + 7,200 = 16,300
The exact answer is 16,371, close to the estimate.
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