Year 2 Number Bonds Worksheet — Level 3 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 2 addition worksheet.
Success TutoringWorksheetsAnswer sheetYear 2 · Mathematics · AdditionYear 2 Number Bonds Worksheet — Level 3 — Practice Set 2 — Answers
Write the missing number to make the whole. These are number bonds to 100.
1. (answer space) + 25 = 100
Answer: 75
- 100 − 25 = 75
2.90 + (answer space) = 100
Answer: 10
- 100 − 90 = 10
3. (answer space) + 45 = 100
Answer: 55
- 100 − 45 = 55
4.20 + (answer space) = 100
Answer: 80
- 100 − 20 = 80
5. (answer space) + 15 = 100
Answer: 85
- 100 − 15 = 85
6. (answer space) + 75 = 100
Answer: 25
- 100 − 75 = 25
7.25 + (answer space) = 100
Answer: 75
- 100 − 25 = 75
8. (answer space) + 50 = 100
Answer: 50
- 100 − 50 = 50
9. (answer space) + 95 = 100
Answer: 5
- 100 − 95 = 5
10.80 + (answer space) = 100
Answer: 20
- 100 − 80 = 20
11.50 + (answer space) = 100
Answer: 50
- 100 − 50 = 50
12. (answer space) + 90 = 100
Answer: 10
- 100 − 90 = 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.