Year 3 Missing Numbers in Number Sentences Worksheet — Level 3 — Practice Set 2 — 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 3 — Practice Set 2 — Answers
Write the missing number. Use addition to check subtraction, and subtraction to check addition.
1. (answer space) + 222 = 808
Answer: 586
- 808 − 222 = 586
2.35 + (answer space) = 856
Answer: 821
- 856 − 35 = 821
3. (answer space) − 109 = 867
Answer: 976
- 867 + 109 = 976
4. (answer space) + 92 = 548
Answer: 456
- 548 − 92 = 456
5. (answer space) + 46 = 663
Answer: 617
- 663 − 46 = 617
6. (answer space) + 374 = 930
Answer: 556
- 930 − 374 = 556
7. (answer space) + 302 = 682
Answer: 380
- 682 − 302 = 380
8. (answer space) − 841 = 152
Answer: 993
- 152 + 841 = 993
9. (answer space) + 424 = 852
Answer: 428
- 852 − 424 = 428
10. (answer space) + 297 = 862
Answer: 565
- 862 − 297 = 565
11.252 − (answer space) = 241
Answer: 11
- 252 − 241 = 11
12.75 + (answer space) = 759
Answer: 684
- 759 − 75 = 684
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.