Year 3 Missing Numbers in Number Sentences Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the Year 3 addition worksheet.
Success TutoringWorksheetsAnswer sheetYear 3 · Mathematics · AdditionYear 3 Missing Numbers in Number Sentences Worksheet — Level 2 — Answers
Write the missing number. Use addition to check subtraction, and subtraction to check addition.
1. (answer space) + 61 = 85
Answer: 24
- 85 − 61 = 24
2. (answer space) + 74 = 94
Answer: 20
- 94 − 74 = 20
3. (answer space) + 76 = 98
Answer: 22
- 98 − 76 = 22
4.77 − (answer space) = 32
Answer: 45
- 77 − 32 = 45
5.60 − (answer space) = 3
Answer: 57
- 60 − 3 = 57
6.24 + (answer space) = 31
Answer: 7
- 31 − 24 = 7
7. (answer space) + 80 = 91
Answer: 11
- 91 − 80 = 11
8.87 − (answer space) = 53
Answer: 34
- 87 − 53 = 34
9.83 − (answer space) = 69
Answer: 14
- 83 − 69 = 14
10.74 − (answer space) = 9
Answer: 65
- 74 − 9 = 65
11.60 + (answer space) = 75
Answer: 15
- 75 − 60 = 15
12. (answer space) − 63 = 6
Answer: 69
- 6 + 63 = 69
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.