2nd Grade Missing Numbers in Number Sentences Worksheet — Level 2 — Practice Set 3 — Answers
Answer sheet with worked solutions for the 2nd Grade addition worksheet.
Success TutoringWorksheetsAnswer sheet2nd Grade · Mathematics · Addition2nd Grade Missing Numbers in Number Sentences Worksheet — Level 2 — Practice Set 3 — Answers
Write the missing number. Use addition to check subtraction, and subtraction to check addition.
1. (answer space) + 51 = 56
Answer: 5
- 56 − 51 = 5
2.51 − (answer space) = 1
Answer: 50
- 51 − 1 = 50
3. (answer space) + 31 = 95
Answer: 64
- 95 − 31 = 64
4. (answer space) + 10 = 81
Answer: 71
- 81 − 10 = 71
5. (answer space) + 5 = 29
Answer: 24
- 29 − 5 = 24
6.27 − (answer space) = 17
Answer: 10
- 27 − 17 = 10
7.16 + (answer space) = 86
Answer: 70
- 86 − 16 = 70
8. (answer space) − 52 = 41
Answer: 93
- 41 + 52 = 93
9.75 − (answer space) = 64
Answer: 11
- 75 − 64 = 11
10. (answer space) − 12 = 35
Answer: 47
- 35 + 12 = 47
11.50 − (answer space) = 46
Answer: 4
- 50 − 46 = 4
12. (answer space) + 8 = 32
Answer: 24
- 32 − 8 = 24
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.