3rd Grade Subtraction Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 3rd Grade subtraction worksheet.
3rd Grade Subtraction Worksheet — Level 1 — Practice Set 4 — Answers
Set out each subtraction in columns. Show any regrouping.
1.
874
−642
Answer: 232
- 4 − 2 = 2
- 7 − 4 = 3
- 8 − 6 = 2
2.
898
−416
Answer: 482
- 8 − 6 = 2
- 9 − 1 = 8
- 8 − 4 = 4
3.
541
−449
Answer: 92
- 1 is less than 9: regroup 1 ten from the next column → 11 − 9 = 2
- 3 is less than 4: regroup 1 ten from the next column → 13 − 4 = 9
- 4 − 4 = 0
4.
834
−589
Answer: 245
- 4 is less than 9: regroup 1 ten from the next column → 14 − 9 = 5
- 2 is less than 8: regroup 1 ten from the next column → 12 − 8 = 4
- 7 − 5 = 2
5.
692
−301
Answer: 391
- 2 − 1 = 1
- 9 − 0 = 9
- 6 − 3 = 3
6.
337
−280
Answer: 57
- 7 − 0 = 7
- 3 is less than 8: regroup 1 ten from the next column → 13 − 8 = 5
- 2 − 2 = 0
7.
513
−412
Answer: 101
- 3 − 2 = 1
- 1 − 1 = 0
- 5 − 4 = 1
8.
814
−407
Answer: 407
- 4 is less than 7: regroup 1 ten from the next column → 14 − 7 = 7
- 0 − 0 = 0
- 8 − 4 = 4
9.
243
−209
Answer: 34
- 3 is less than 9: regroup 1 ten from the next column → 13 − 9 = 4
- 3 − 0 = 3
- 2 − 2 = 0
10.
983
−727
Answer: 256
- 3 is less than 7: regroup 1 ten from the next column → 13 − 7 = 6
- 7 − 2 = 5
- 9 − 7 = 2
11.
430
−287
Answer: 143
- 0 is less than 7: regroup 1 ten from the next column → 10 − 7 = 3
- 2 is less than 8: regroup 1 ten from the next column → 12 − 8 = 4
- 3 − 2 = 1
12.
729
−154
Answer: 575
- 9 − 4 = 5
- 2 is less than 5: regroup 1 ten from the next column → 12 − 5 = 7
- 6 − 1 = 5
13.
488
−314
Answer: 174
- 8 − 4 = 4
- 8 − 1 = 7
- 4 − 3 = 1
14.
639
−527
Answer: 112
- 9 − 7 = 2
- 3 − 2 = 1
- 6 − 5 = 1
15.
325
−128
Answer: 197
- 5 is less than 8: regroup 1 ten from the next column → 15 − 8 = 7
- 1 is less than 2: regroup 1 ten from the next column → 11 − 2 = 9
- 2 − 1 = 1
16.
312
−151
Answer: 161
- 2 − 1 = 1
- 1 is less than 5: regroup 1 ten from the next column → 11 − 5 = 6
- 2 − 1 = 1
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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