3rd Grade Subtraction Worksheet — Level 3 — Practice Set 2 — Answers
Answer sheet with worked solutions for the 3rd Grade subtraction worksheet.
3rd Grade Subtraction Worksheet — Level 3 — Practice Set 2 — Answers
Set out each subtraction in columns. Show any regrouping.
1.
6798
−3198
Answer: 3600
- 8 − 8 = 0
- 9 − 9 = 0
- 7 − 1 = 6
- 6 − 3 = 3
2.
5262
−2315
Answer: 2947
- 2 is less than 5: regroup 1 ten from the next column → 12 − 5 = 7
- 5 − 1 = 4
- 2 is less than 3: regroup 1 ten from the next column → 12 − 3 = 9
- 4 − 2 = 2
3.
2570
−2247
Answer: 323
- 0 is less than 7: regroup 1 ten from the next column → 10 − 7 = 3
- 6 − 4 = 2
- 5 − 2 = 3
- 2 − 2 = 0
4.
7911
−1424
Answer: 6487
- 1 is less than 4: regroup 1 ten from the next column → 11 − 4 = 7
- 0 is less than 2: regroup 1 ten from the next column → 10 − 2 = 8
- 8 − 4 = 4
- 7 − 1 = 6
5.
2249
−1712
Answer: 537
- 9 − 2 = 7
- 4 − 1 = 3
- 2 is less than 7: regroup 1 ten from the next column → 12 − 7 = 5
- 1 − 1 = 0
6.
7613
−2055
Answer: 5558
- 3 is less than 5: regroup 1 ten from the next column → 13 − 5 = 8
- 0 is less than 5: regroup 1 ten from the next column → 10 − 5 = 5
- 5 − 0 = 5
- 7 − 2 = 5
7.
8433
−4875
Answer: 3558
- 3 is less than 5: regroup 1 ten from the next column → 13 − 5 = 8
- 2 is less than 7: regroup 1 ten from the next column → 12 − 7 = 5
- 3 is less than 8: regroup 1 ten from the next column → 13 − 8 = 5
- 7 − 4 = 3
8.
9204
−3035
Answer: 6169
- 4 is less than 5: regroup 1 ten from the next column → 14 − 5 = 9
- 0 lent 1 to the column before, so regroup again: this column becomes 9 → 9 − 3 = 6
- 1 − 0 = 1
- 9 − 3 = 6
9.
9499
−3578
Answer: 5921
- 9 − 8 = 1
- 9 − 7 = 2
- 4 is less than 5: regroup 1 ten from the next column → 14 − 5 = 9
- 8 − 3 = 5
10.
8848
−7873
Answer: 975
- 8 − 3 = 5
- 4 is less than 7: regroup 1 ten from the next column → 14 − 7 = 7
- 7 is less than 8: regroup 1 ten from the next column → 17 − 8 = 9
- 7 − 7 = 0
11.
2697
−2124
Answer: 573
- 7 − 4 = 3
- 9 − 2 = 7
- 6 − 1 = 5
- 2 − 2 = 0
12.
5737
−2567
Answer: 3170
- 7 − 7 = 0
- 3 is less than 6: regroup 1 ten from the next column → 13 − 6 = 7
- 6 − 5 = 1
- 5 − 2 = 3
13.
7178
−1092
Answer: 6086
- 8 − 2 = 6
- 7 is less than 9: regroup 1 ten from the next column → 17 − 9 = 8
- 0 − 0 = 0
- 7 − 1 = 6
14.
9693
−2447
Answer: 7246
- 3 is less than 7: regroup 1 ten from the next column → 13 − 7 = 6
- 8 − 4 = 4
- 6 − 4 = 2
- 9 − 2 = 7
15.
5030
−4064
Answer: 966
- 0 is less than 4: regroup 1 ten from the next column → 10 − 4 = 6
- 2 is less than 6: regroup 1 ten from the next column → 12 − 6 = 6
- 0 lent 1 to the column before, so regroup again: this column becomes 9 → 9 − 0 = 9
- 4 − 4 = 0
16.
8490
−2039
Answer: 6451
- 0 is less than 9: regroup 1 ten from the next column → 10 − 9 = 1
- 8 − 3 = 5
- 4 − 0 = 4
- 8 − 2 = 6
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.
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