3rd Grade Subtraction Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the 3rd Grade subtraction worksheet.
3rd Grade Subtraction Worksheet — Level 1 — Practice Set 3 — Answers
Set out each subtraction in columns. Show any regrouping.
1.
355
−123
Answer: 232
- 5 − 3 = 2
- 5 − 2 = 3
- 3 − 1 = 2
2.
649
−410
Answer: 239
- 9 − 0 = 9
- 4 − 1 = 3
- 6 − 4 = 2
3.
444
−403
Answer: 41
- 4 − 3 = 1
- 4 − 0 = 4
- 4 − 4 = 0
4.
976
−278
Answer: 698
- 6 is less than 8: regroup 1 ten from the next column → 16 − 8 = 8
- 6 is less than 7: regroup 1 ten from the next column → 16 − 7 = 9
- 8 − 2 = 6
5.
925
−264
Answer: 661
- 5 − 4 = 1
- 2 is less than 6: regroup 1 ten from the next column → 12 − 6 = 6
- 8 − 2 = 6
6.
665
−127
Answer: 538
- 5 is less than 7: regroup 1 ten from the next column → 15 − 7 = 8
- 5 − 2 = 3
- 6 − 1 = 5
7.
718
−179
Answer: 539
- 8 is less than 9: regroup 1 ten from the next column → 18 − 9 = 9
- 0 is less than 7: regroup 1 ten from the next column → 10 − 7 = 3
- 6 − 1 = 5
8.
756
−166
Answer: 590
- 6 − 6 = 0
- 5 is less than 6: regroup 1 ten from the next column → 15 − 6 = 9
- 6 − 1 = 5
9.
380
−258
Answer: 122
- 0 is less than 8: regroup 1 ten from the next column → 10 − 8 = 2
- 7 − 5 = 2
- 3 − 2 = 1
10.
616
−459
Answer: 157
- 6 is less than 9: regroup 1 ten from the next column → 16 − 9 = 7
- 0 is less than 5: regroup 1 ten from the next column → 10 − 5 = 5
- 5 − 4 = 1
11.
562
−377
Answer: 185
- 2 is less than 7: regroup 1 ten from the next column → 12 − 7 = 5
- 5 is less than 7: regroup 1 ten from the next column → 15 − 7 = 8
- 4 − 3 = 1
12.
790
−380
Answer: 410
- 0 − 0 = 0
- 9 − 8 = 1
- 7 − 3 = 4
13.
299
−108
Answer: 191
- 9 − 8 = 1
- 9 − 0 = 9
- 2 − 1 = 1
14.
290
−113
Answer: 177
- 0 is less than 3: regroup 1 ten from the next column → 10 − 3 = 7
- 8 − 1 = 7
- 2 − 1 = 1
15.
974
−559
Answer: 415
- 4 is less than 9: regroup 1 ten from the next column → 14 − 9 = 5
- 6 − 5 = 1
- 9 − 5 = 4
16.
598
−594
Answer: 4
- 8 − 4 = 4
- 9 − 9 = 0
- 5 − 5 = 0
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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