Year 3 Subtraction Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 3 subtraction worksheet.
Year 3 Subtraction Worksheet — Level 1 — Practice Set 3 — Answers
Set out each subtraction in columns. Show any regrouping.
1.
897
−558
Answer: 339
- 7 is less than 8: regroup 1 ten from the next column → 17 − 8 = 9
- 8 − 5 = 3
- 8 − 5 = 3
2.
526
−112
Answer: 414
- 6 − 2 = 4
- 2 − 1 = 1
- 5 − 1 = 4
3.
286
−182
Answer: 104
- 6 − 2 = 4
- 8 − 8 = 0
- 2 − 1 = 1
4.
512
−187
Answer: 325
- 2 is less than 7: regroup 1 ten from the next column → 12 − 7 = 5
- 0 is less than 8: regroup 1 ten from the next column → 10 − 8 = 2
- 4 − 1 = 3
5.
843
−318
Answer: 525
- 3 is less than 8: regroup 1 ten from the next column → 13 − 8 = 5
- 3 − 1 = 2
- 8 − 3 = 5
6.
506
−289
Answer: 217
- 6 is less than 9: regroup 1 ten from the next column → 16 − 9 = 7
- 0 lent 1 to the column before, so regroup again: this column becomes 9 → 9 − 8 = 1
- 4 − 2 = 2
7.
649
−440
Answer: 209
- 9 − 0 = 9
- 4 − 4 = 0
- 6 − 4 = 2
8.
747
−546
Answer: 201
- 7 − 6 = 1
- 4 − 4 = 0
- 7 − 5 = 2
9.
366
−202
Answer: 164
- 6 − 2 = 4
- 6 − 0 = 6
- 3 − 2 = 1
10.
975
−127
Answer: 848
- 5 is less than 7: regroup 1 ten from the next column → 15 − 7 = 8
- 6 − 2 = 4
- 9 − 1 = 8
11.
948
−180
Answer: 768
- 8 − 0 = 8
- 4 is less than 8: regroup 1 ten from the next column → 14 − 8 = 6
- 8 − 1 = 7
12.
217
−130
Answer: 87
- 7 − 0 = 7
- 1 is less than 3: regroup 1 ten from the next column → 11 − 3 = 8
- 1 − 1 = 0
13.
855
−620
Answer: 235
- 5 − 0 = 5
- 5 − 2 = 3
- 8 − 6 = 2
14.
387
−332
Answer: 55
- 7 − 2 = 5
- 8 − 3 = 5
- 3 − 3 = 0
15.
459
−334
Answer: 125
- 9 − 4 = 5
- 5 − 3 = 2
- 4 − 3 = 1
16.
385
−109
Answer: 276
- 5 is less than 9: regroup 1 ten from the next column → 15 − 9 = 6
- 7 − 0 = 7
- 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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