Year 4 Missing Numbers in Number Sentences Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 4 addition worksheet.
Success TutoringWorksheetsAnswer sheetYear 4 · Mathematics · AdditionYear 4 Missing Numbers in Number Sentences Worksheet — Level 1 — Practice Set 2 — Answers
Write the missing number. Use addition to check subtraction, and subtraction to check addition.
1.15 − (answer space) = 6
Answer: 9
- 15 − 6 = 9
2.9 − (answer space) = 5
Answer: 4
- 9 − 5 = 4
3.15 − (answer space) = 12
Answer: 3
- 15 − 12 = 3
4. (answer space) − 2 = 12
Answer: 14
- 12 + 2 = 14
5.3 + (answer space) = 15
Answer: 12
- 15 − 3 = 12
6. (answer space) − 5 = 4
Answer: 9
- 4 + 5 = 9
7. (answer space) − 8 = 7
Answer: 15
- 7 + 8 = 15
8. (answer space) − 7 = 10
Answer: 17
- 10 + 7 = 17
9. (answer space) − 7 = 8
Answer: 15
- 8 + 7 = 15
10.6 + (answer space) = 16
Answer: 10
- 16 − 6 = 10
11.9 + (answer space) = 10
Answer: 1
- 10 − 9 = 1
12. (answer space) − 2 = 3
Answer: 5
- 3 + 2 = 5
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.