Year 6 Estimating Sums, Differences and Products Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the Year 6 place value worksheet.
Success TutoringWorksheetsAnswer sheetYear 6 · Mathematics · Place ValueYear 6 Estimating Sums, Differences and Products Worksheet — Level 2 — Answers
Round each number first, then work out the estimate in your head.
1.Estimate 384 + 531 by rounding each number to the nearest 100.
Answer: 900
- 384 rounds to 400; 531 rounds to 500
- 400 + 500 = 900
The exact answer is 915, close to the estimate.
2.Estimate 67 × 3 by rounding 67 to the nearest 10.
Answer: 210
- 67 rounds to 70
- 70 × 3 = 210
The exact answer is 201.
3.Estimate 981 − 750 by rounding each number to the nearest 100.
Answer: 200
- 981 rounds to 1,000; 750 rounds to 800
- 1,000 − 800 = 200
The exact answer is 231, close to the estimate.
4.Estimate 74 × 7 by rounding 74 to the nearest 10.
Answer: 490
- 74 rounds to 70
- 70 × 7 = 490
The exact answer is 518.
5.Estimate 288 + 720 by rounding each number to the nearest 100.
Answer: 1,000
- 288 rounds to 300; 720 rounds to 700
- 300 + 700 = 1,000
The exact answer is 1,008, close to the estimate.
6.Estimate 63 × 8 by rounding 63 to the nearest 10.
Answer: 480
- 63 rounds to 60
- 60 × 8 = 480
The exact answer is 504.
7.Estimate 607 − 358 by rounding each number to the nearest 100.
Answer: 200
- 607 rounds to 600; 358 rounds to 400
- 600 − 400 = 200
The exact answer is 249, close to the estimate.
8.Estimate 14 × 4 by rounding 14 to the nearest 10.
Answer: 40
- 14 rounds to 10
- 10 × 4 = 40
The exact answer is 56.
9.Estimate 738 − 392 by rounding each number to the nearest 100.
Answer: 300
- 738 rounds to 700; 392 rounds to 400
- 700 − 400 = 300
The exact answer is 346, close to the estimate.
10.Estimate 14 × 3 by rounding 14 to the nearest 10.
Answer: 30
- 14 rounds to 10
- 10 × 3 = 30
The exact answer is 42.
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.