3rd Grade Subtraction Worksheet — Level 3 — Answers
Answer sheet with worked solutions for the 3rd Grade subtraction worksheet.
3rd Grade Subtraction Worksheet — Level 3 — Answers
Set out each subtraction in columns. Show any regrouping.
1.
2839
−2809
Answer: 30
- 9 − 9 = 0
- 3 − 0 = 3
- 8 − 8 = 0
- 2 − 2 = 0
2.
4270
−3087
Answer: 1183
- 0 is less than 7: regroup 1 ten from the next column → 10 − 7 = 3
- 6 is less than 8: regroup 1 ten from the next column → 16 − 8 = 8
- 1 − 0 = 1
- 4 − 3 = 1
3.
6183
−2399
Answer: 3784
- 3 is less than 9: regroup 1 ten from the next column → 13 − 9 = 4
- 7 is less than 9: regroup 1 ten from the next column → 17 − 9 = 8
- 0 is less than 3: regroup 1 ten from the next column → 10 − 3 = 7
- 5 − 2 = 3
4.
8523
−4755
Answer: 3768
- 3 is less than 5: regroup 1 ten from the next column → 13 − 5 = 8
- 1 is less than 5: regroup 1 ten from the next column → 11 − 5 = 6
- 4 is less than 7: regroup 1 ten from the next column → 14 − 7 = 7
- 7 − 4 = 3
5.
3010
−1050
Answer: 1960
- 0 − 0 = 0
- 1 is less than 5: regroup 1 ten from the next column → 11 − 5 = 6
- 0 lent 1 to the column before, so regroup again: this column becomes 9 → 9 − 0 = 9
- 2 − 1 = 1
6.
2853
−2434
Answer: 419
- 3 is less than 4: regroup 1 ten from the next column → 13 − 4 = 9
- 4 − 3 = 1
- 8 − 4 = 4
- 2 − 2 = 0
7.
9799
−3477
Answer: 6322
- 9 − 7 = 2
- 9 − 7 = 2
- 7 − 4 = 3
- 9 − 3 = 6
8.
5206
−1250
Answer: 3956
- 6 − 0 = 6
- 0 is less than 5: regroup 1 ten from the next column → 10 − 5 = 5
- 1 is less than 2: regroup 1 ten from the next column → 11 − 2 = 9
- 4 − 1 = 3
9.
7506
−5965
Answer: 1541
- 6 − 5 = 1
- 0 is less than 6: regroup 1 ten from the next column → 10 − 6 = 4
- 4 is less than 9: regroup 1 ten from the next column → 14 − 9 = 5
- 6 − 5 = 1
10.
8467
−3183
Answer: 5284
- 7 − 3 = 4
- 6 is less than 8: regroup 1 ten from the next column → 16 − 8 = 8
- 3 − 1 = 2
- 8 − 3 = 5
11.
6470
−3733
Answer: 2737
- 0 is less than 3: regroup 1 ten from the next column → 10 − 3 = 7
- 6 − 3 = 3
- 4 is less than 7: regroup 1 ten from the next column → 14 − 7 = 7
- 5 − 3 = 2
12.
9149
−9078
Answer: 71
- 9 − 8 = 1
- 4 is less than 7: regroup 1 ten from the next column → 14 − 7 = 7
- 0 − 0 = 0
- 9 − 9 = 0
13.
4760
−4600
Answer: 160
- 0 − 0 = 0
- 6 − 0 = 6
- 7 − 6 = 1
- 4 − 4 = 0
14.
5476
−3445
Answer: 2031
- 6 − 5 = 1
- 7 − 4 = 3
- 4 − 4 = 0
- 5 − 3 = 2
15.
5766
−3655
Answer: 2111
- 6 − 5 = 1
- 6 − 5 = 1
- 7 − 6 = 1
- 5 − 3 = 2
16.
3575
−1287
Answer: 2288
- 5 is less than 7: regroup 1 ten from the next column → 15 − 7 = 8
- 6 is less than 8: regroup 1 ten from the next column → 16 − 8 = 8
- 4 − 2 = 2
- 3 − 1 = 2
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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