Year 3 Missing Numbers in Number Sentences Worksheet — Level 2 — Practice Set 4 — 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 4 — Answers
Write the missing number. Use addition to check subtraction, and subtraction to check addition.
1. (answer space) + 46 = 50
Answer: 4
- 50 − 46 = 4
2. (answer space) − 81 = 5
Answer: 86
- 5 + 81 = 86
3.41 − (answer space) = 39
Answer: 2
- 41 − 39 = 2
4. (answer space) + 30 = 84
Answer: 54
- 84 − 30 = 54
5. (answer space) − 16 = 32
Answer: 48
- 32 + 16 = 48
6.52 − (answer space) = 32
Answer: 20
- 52 − 32 = 20
7.28 + (answer space) = 73
Answer: 45
- 73 − 28 = 45
8.46 − (answer space) = 8
Answer: 38
- 46 − 8 = 38
9.97 − (answer space) = 71
Answer: 26
- 97 − 71 = 26
10. (answer space) − 5 = 51
Answer: 56
- 51 + 5 = 56
11.51 + (answer space) = 88
Answer: 37
- 88 − 51 = 37
12.21 + (answer space) = 28
Answer: 7
- 28 − 21 = 7
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.