Year 2 Subtraction Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 2 subtraction worksheet.
Success TutoringWorksheetsAnswer sheetYear 2 · Mathematics · SubtractionYear 2 Subtraction Worksheet — Level 1 — Practice Set 4 — Answers
Set out each subtraction in columns. Show any regrouping.
1.
51
−20
Answer: 31
- 1 − 0 = 1
- 5 − 2 = 3
2.
38
−20
Answer: 18
- 8 − 0 = 8
- 3 − 2 = 1
3.
98
−42
Answer: 56
- 8 − 2 = 6
- 9 − 4 = 5
4.
47
−25
Answer: 22
- 7 − 5 = 2
- 4 − 2 = 2
5.
72
−24
Answer: 48
- 2 is less than 4: regroup 1 ten from the next column → 12 − 4 = 8
- 6 − 2 = 4
6.
78
−24
Answer: 54
- 8 − 4 = 4
- 7 − 2 = 5
7.
70
−14
Answer: 56
- 0 is less than 4: regroup 1 ten from the next column → 10 − 4 = 6
- 6 − 1 = 5
8.
30
−13
Answer: 17
- 0 is less than 3: regroup 1 ten from the next column → 10 − 3 = 7
- 2 − 1 = 1
9.
30
−25
Answer: 5
- 0 is less than 5: regroup 1 ten from the next column → 10 − 5 = 5
- 2 − 2 = 0
10.
52
−29
Answer: 23
- 2 is less than 9: regroup 1 ten from the next column → 12 − 9 = 3
- 4 − 2 = 2
11.
86
−66
Answer: 20
- 6 − 6 = 0
- 8 − 6 = 2
12.
82
−70
Answer: 12
- 2 − 0 = 2
- 8 − 7 = 1
13.
97
−59
Answer: 38
- 7 is less than 9: regroup 1 ten from the next column → 17 − 9 = 8
- 8 − 5 = 3
14.
88
−34
Answer: 54
- 8 − 4 = 4
- 8 − 3 = 5
15.
67
−18
Answer: 49
- 7 is less than 8: regroup 1 ten from the next column → 17 − 8 = 9
- 5 − 1 = 4
16.
56
−46
Answer: 10
- 6 − 6 = 0
- 5 − 4 = 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.
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