2nd Grade Missing Numbers in Number Sentences Worksheet — Level 1 — Practice Set 4 — 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 1 — Practice Set 4 — Answers
Write the missing number. Use addition to check subtraction, and subtraction to check addition.
1. (answer space) − 10 = 4
Answer: 14
- 4 + 10 = 14
2. (answer space) + 4 = 12
Answer: 8
- 12 − 4 = 8
3.7 + (answer space) = 16
Answer: 9
- 16 − 7 = 9
4.11 + (answer space) = 13
Answer: 2
- 13 − 11 = 2
5.1 + (answer space) = 5
Answer: 4
- 5 − 1 = 4
6. (answer space) − 3 = 2
Answer: 5
- 2 + 3 = 5
7. (answer space) + 3 = 18
Answer: 15
- 18 − 3 = 15
8. (answer space) − 5 = 2
Answer: 7
- 2 + 5 = 7
9. (answer space) + 10 = 13
Answer: 3
- 13 − 10 = 3
10.8 − (answer space) = 1
Answer: 7
- 8 − 1 = 7
11. (answer space) − 1 = 11
Answer: 12
- 11 + 1 = 12
12.3 + (answer space) = 13
Answer: 10
- 13 − 3 = 10
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.