1st Grade Subtraction Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the 1st Grade subtraction worksheet.
1st Grade Subtraction Worksheet — Level 2 — Answers
Set out each subtraction in columns. Show any regrouping.
1.
90
−59
Answer: 31
- 0 is less than 9: regroup 1 ten from the next column → 10 − 9 = 1
- 8 − 5 = 3
2.
75
−29
Answer: 46
- 5 is less than 9: regroup 1 ten from the next column → 15 − 9 = 6
- 6 − 2 = 4
3.
42
−15
Answer: 27
- 2 is less than 5: regroup 1 ten from the next column → 12 − 5 = 7
- 3 − 1 = 2
4.
93
−32
Answer: 61
- 3 − 2 = 1
- 9 − 3 = 6
5.
41
−20
Answer: 21
- 1 − 0 = 1
- 4 − 2 = 2
6.
71
−47
Answer: 24
- 1 is less than 7: regroup 1 ten from the next column → 11 − 7 = 4
- 6 − 4 = 2
7.
51
−28
Answer: 23
- 1 is less than 8: regroup 1 ten from the next column → 11 − 8 = 3
- 4 − 2 = 2
8.
67
−64
Answer: 3
- 7 − 4 = 3
- 6 − 6 = 0
9.
48
−12
Answer: 36
- 8 − 2 = 6
- 4 − 1 = 3
10.
32
−27
Answer: 5
- 2 is less than 7: regroup 1 ten from the next column → 12 − 7 = 5
- 2 − 2 = 0
11.
68
−23
Answer: 45
- 8 − 3 = 5
- 6 − 2 = 4
12.
77
−15
Answer: 62
- 7 − 5 = 2
- 7 − 1 = 6
13.
92
−54
Answer: 38
- 2 is less than 4: regroup 1 ten from the next column → 12 − 4 = 8
- 8 − 5 = 3
14.
99
−32
Answer: 67
- 9 − 2 = 7
- 9 − 3 = 6
15.
93
−57
Answer: 36
- 3 is less than 7: regroup 1 ten from the next column → 13 − 7 = 6
- 8 − 5 = 3
16.
66
−36
Answer: 30
- 6 − 6 = 0
- 6 − 3 = 3
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.