6th Grade Estimating Sums, Differences and Products Worksheet — Level 2 — 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 2 — Practice Set 4 — Answers
Round each number first, then work out the estimate in your head.
1.Estimate 979 + 312 by rounding each number to the nearest 100.
Answer: 1,300
- 979 rounds to 1,000; 312 rounds to 300
- 1,000 + 300 = 1,300
The exact answer is 1,291, close to the estimate.
2.Estimate 77 × 8 by rounding 77 to the nearest 10.
Answer: 640
- 77 rounds to 80
- 80 × 8 = 640
The exact answer is 616.
3.Estimate 719 + 936 by rounding each number to the nearest 100.
Answer: 1,600
- 719 rounds to 700; 936 rounds to 900
- 700 + 900 = 1,600
The exact answer is 1,655, close to the estimate.
4.Estimate 72 × 6 by rounding 72 to the nearest 10.
Answer: 420
- 72 rounds to 70
- 70 × 6 = 420
The exact answer is 432.
5.Estimate 363 + 536 by rounding each number to the nearest 100.
Answer: 900
- 363 rounds to 400; 536 rounds to 500
- 400 + 500 = 900
The exact answer is 899, close to the estimate.
6.Estimate 92 × 6 by rounding 92 to the nearest 10.
Answer: 540
- 92 rounds to 90
- 90 × 6 = 540
The exact answer is 552.
7.Estimate 762 + 985 by rounding each number to the nearest 100.
Answer: 1,800
- 762 rounds to 800; 985 rounds to 1,000
- 800 + 1,000 = 1,800
The exact answer is 1,747, close to the estimate.
8.Estimate 24 × 3 by rounding 24 to the nearest 10.
Answer: 60
- 24 rounds to 20
- 20 × 3 = 60
The exact answer is 72.
9.Estimate 748 − 184 by rounding each number to the nearest 100.
Answer: 500
- 748 rounds to 700; 184 rounds to 200
- 700 − 200 = 500
The exact answer is 564, close to the estimate.
10.Estimate 36 × 8 by rounding 36 to the nearest 10.
Answer: 320
- 36 rounds to 40
- 40 × 8 = 320
The exact answer is 288.
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.