Year 4 Missing Numbers in Number Sentences Worksheet — Level 3 — Practice Set 3 — 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 3 — Practice Set 3 — Answers
Write the missing number. Use addition to check subtraction, and subtraction to check addition.
1. (answer space) + 524 = 853
Answer: 329
- 853 − 524 = 329
2.780 − (answer space) = 579
Answer: 201
- 780 − 579 = 201
3. (answer space) − 376 = 439
Answer: 815
- 439 + 376 = 815
4. (answer space) − 126 = 523
Answer: 649
- 523 + 126 = 649
5.451 − (answer space) = 190
Answer: 261
- 451 − 190 = 261
6. (answer space) + 370 = 603
Answer: 233
- 603 − 370 = 233
7.132 + (answer space) = 314
Answer: 182
- 314 − 132 = 182
8. (answer space) − 366 = 12
Answer: 378
- 12 + 366 = 378
9.515 − (answer space) = 373
Answer: 142
- 515 − 373 = 142
10. (answer space) − 460 = 417
Answer: 877
- 417 + 460 = 877
11.471 − (answer space) = 322
Answer: 149
- 471 − 322 = 149
12. (answer space) + 752 = 844
Answer: 92
- 844 − 752 = 92
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.