Year 3 Subtraction Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 3 subtraction worksheet.
Year 3 Subtraction Worksheet — Level 1 — Practice Set 4 — Answers
Set out each subtraction in columns. Show any regrouping.
1.
933
−164
Answer: 769
- 3 is less than 4: regroup 1 ten from the next column → 13 − 4 = 9
- 2 is less than 6: regroup 1 ten from the next column → 12 − 6 = 6
- 8 − 1 = 7
2.
551
−371
Answer: 180
- 1 − 1 = 0
- 5 is less than 7: regroup 1 ten from the next column → 15 − 7 = 8
- 4 − 3 = 1
3.
315
−300
Answer: 15
- 5 − 0 = 5
- 1 − 0 = 1
- 3 − 3 = 0
4.
285
−261
Answer: 24
- 5 − 1 = 4
- 8 − 6 = 2
- 2 − 2 = 0
5.
858
−814
Answer: 44
- 8 − 4 = 4
- 5 − 1 = 4
- 8 − 8 = 0
6.
873
−220
Answer: 653
- 3 − 0 = 3
- 7 − 2 = 5
- 8 − 2 = 6
7.
210
−115
Answer: 95
- 0 is less than 5: regroup 1 ten from the next column → 10 − 5 = 5
- 0 is less than 1: regroup 1 ten from the next column → 10 − 1 = 9
- 1 − 1 = 0
8.
923
−669
Answer: 254
- 3 is less than 9: regroup 1 ten from the next column → 13 − 9 = 4
- 1 is less than 6: regroup 1 ten from the next column → 11 − 6 = 5
- 8 − 6 = 2
9.
218
−192
Answer: 26
- 8 − 2 = 6
- 1 is less than 9: regroup 1 ten from the next column → 11 − 9 = 2
- 1 − 1 = 0
10.
509
−165
Answer: 344
- 9 − 5 = 4
- 0 is less than 6: regroup 1 ten from the next column → 10 − 6 = 4
- 4 − 1 = 3
11.
332
−321
Answer: 11
- 2 − 1 = 1
- 3 − 2 = 1
- 3 − 3 = 0
12.
263
−105
Answer: 158
- 3 is less than 5: regroup 1 ten from the next column → 13 − 5 = 8
- 5 − 0 = 5
- 2 − 1 = 1
13.
475
−326
Answer: 149
- 5 is less than 6: regroup 1 ten from the next column → 15 − 6 = 9
- 6 − 2 = 4
- 4 − 3 = 1
14.
500
−428
Answer: 72
- 0 is less than 8: regroup 1 ten from the next column → 10 − 8 = 2
- 0 lent 1 to the column before, so regroup again: this column becomes 9 → 9 − 2 = 7
- 4 − 4 = 0
15.
788
−369
Answer: 419
- 8 is less than 9: regroup 1 ten from the next column → 18 − 9 = 9
- 7 − 6 = 1
- 7 − 3 = 4
16.
223
−118
Answer: 105
- 3 is less than 8: regroup 1 ten from the next column → 13 − 8 = 5
- 1 − 1 = 0
- 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.
Great work. Here's what to try next: