Year 3 Ten More, Ten Less (and One More, One Less) Worksheet — Getting Started — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 3 place value worksheet.
Success TutoringWorksheetsAnswer sheetYear 3 · Mathematics · Place ValueYear 3 Ten More, Ten Less (and One More, One Less) Worksheet — Getting Started — Practice Set 3 — Answers
Use place value: ten more or ten less changes the tens digit.
1.One more than 10 is (answer space).
Answer: 11
- 10 + 1 = 11
2.One less than 14 is (answer space).
Answer: 13
- 14 − 1 = 13
3.One more than 17 is (answer space).
Answer: 18
- 17 + 1 = 18
4.One less than 15 is (answer space).
Answer: 14
- 15 − 1 = 14
5.One more than 14 is (answer space).
Answer: 15
- 14 + 1 = 15
6.One less than 9 is (answer space).
Answer: 8
- 9 − 1 = 8
7.One more than 7 is (answer space).
Answer: 8
- 7 + 1 = 8
8.One less than 20 is (answer space).
Answer: 19
- 20 − 1 = 19
9.One more than 8 is (answer space).
Answer: 9
- 8 + 1 = 9
10.One less than 12 is (answer space).
Answer: 11
- 12 − 1 = 11
11.One less than 4 is (answer space).
Answer: 3
- 4 − 1 = 3
12.One less than 13 is (answer space).
Answer: 12
- 13 − 1 = 12
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.