Year 3 Addition Worksheet — Getting Started — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 3 addition worksheet.
Success TutoringWorksheetsAnswer sheetYear 3 · Mathematics · AdditionYear 3 Addition Worksheet — Getting Started — Practice Set 3 — Answers
Add the numbers.
1.12 + 3 = (answer space)
Answer: 15
2.9 + 11 = (answer space)
Answer: 20
3.8 + 10 = (answer space)
Answer: 18
4.4 + 6 = (answer space)
Answer: 10
5.4 + 4 = (answer space)
Answer: 8
6.15 + 1 = (answer space)
Answer: 16
7.13 + 3 = (answer space)
Answer: 16
8.7 + 2 = (answer space)
Answer: 9
9.5 + 6 = (answer space)
Answer: 11
10.17 + 3 = (answer space)
Answer: 20
11.5 + 15 = (answer space)
Answer: 20
12.15 + 5 = (answer space)
Answer: 20
13.15 + 4 = (answer space)
Answer: 19
14.11 + 5 = (answer space)
Answer: 16
15.17 + 2 = (answer space)
Answer: 19
16.5 + 13 = (answer space)
Answer: 18
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.