Year 2 Missing Numbers in Number Sentences Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 2 addition worksheet.
Success TutoringWorksheetsAnswer sheetYear 2 · Mathematics · AdditionYear 2 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.
1.10 − (answer space) = 7
Answer: 3
- 10 − 7 = 3
2.8 + (answer space) = 10
Answer: 2
- 10 − 8 = 2
3. (answer space) + 9 = 11
Answer: 2
- 11 − 9 = 2
4.10 − (answer space) = 4
Answer: 6
- 10 − 4 = 6
5.17 − (answer space) = 12
Answer: 5
- 17 − 12 = 5
6. (answer space) + 4 = 10
Answer: 6
- 10 − 4 = 6
7.13 − (answer space) = 8
Answer: 5
- 13 − 8 = 5
8. (answer space) + 3 = 19
Answer: 16
- 19 − 3 = 16
9. (answer space) + 7 = 8
Answer: 1
- 8 − 7 = 1
10. (answer space) + 2 = 7
Answer: 5
- 7 − 2 = 5
11. (answer space) + 5 = 13
Answer: 8
- 13 − 5 = 8
12.18 − (answer space) = 16
Answer: 2
- 18 − 16 = 2
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.