Year 3 Missing Numbers in Number Sentences Worksheet — Level 2 — Practice Set 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 — Practice Set 2 — Answers
Write the missing number. Use addition to check subtraction, and subtraction to check addition.
1.67 + (answer space) = 75
Answer: 8
- 75 − 67 = 8
2. (answer space) − 18 = 24
Answer: 42
- 24 + 18 = 42
3. (answer space) − 85 = 6
Answer: 91
- 6 + 85 = 91
4. (answer space) + 22 = 30
Answer: 8
- 30 − 22 = 8
5. (answer space) + 35 = 49
Answer: 14
- 49 − 35 = 14
6. (answer space) − 22 = 45
Answer: 67
- 45 + 22 = 67
7. (answer space) − 48 = 25
Answer: 73
- 25 + 48 = 73
8.46 + (answer space) = 56
Answer: 10
- 56 − 46 = 10
9.1 + (answer space) = 94
Answer: 93
- 94 − 1 = 93
10.15 + (answer space) = 87
Answer: 72
- 87 − 15 = 72
11.29 + (answer space) = 59
Answer: 30
- 59 − 29 = 30
12. (answer space) + 23 = 59
Answer: 36
- 59 − 23 = 36
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.