Year 3 Number Bonds Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 3 addition worksheet.
Success TutoringWorksheetsAnswer sheetYear 3 · Mathematics · AdditionYear 3 Number Bonds Worksheet — Level 2 — Practice Set 4 — Answers
Write the missing number to make the whole. These are number bonds to 10 and 20.
1.11 + (answer space) = 20
Answer: 9
- 20 − 11 = 9
2.14 + (answer space) = 20
Answer: 6
- 20 − 14 = 6
3. (answer space) + 5 = 10
Answer: 5
- 10 − 5 = 5
4. (answer space) + 6 = 10
Answer: 4
- 10 − 6 = 4
5. (answer space) + 17 = 20
Answer: 3
- 20 − 17 = 3
6.1 + (answer space) = 10
Answer: 9
- 10 − 1 = 9
7. (answer space) + 5 = 20
Answer: 15
- 20 − 5 = 15
8.3 + (answer space) = 20
Answer: 17
- 20 − 3 = 17
9. (answer space) + 2 = 20
Answer: 18
- 20 − 2 = 18
10.12 + (answer space) = 20
Answer: 8
- 20 − 12 = 8
11. (answer space) + 16 = 20
Answer: 4
- 20 − 16 = 4
12.6 + (answer space) = 20
Answer: 14
- 20 − 6 = 14
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.