Year 3 Ten More, Ten Less (and One More, One Less) Worksheet — Getting Started — Practice Set 2 — 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 2 — Answers
Use place value: ten more or ten less changes the tens digit.
1.One less than 14 is (answer space).
Answer: 13
- 14 − 1 = 13
2.One less than 9 is (answer space).
Answer: 8
- 9 − 1 = 8
3.One less than 19 is (answer space).
Answer: 18
- 19 − 1 = 18
4.One less than 12 is (answer space).
Answer: 11
- 12 − 1 = 11
5.One less than 2 is (answer space).
Answer: 1
- 2 − 1 = 1
6.One less than 17 is (answer space).
Answer: 16
- 17 − 1 = 16
7.One more than 3 is (answer space).
Answer: 4
- 3 + 1 = 4
8.One more than 17 is (answer space).
Answer: 18
- 17 + 1 = 18
9.One more than 15 is (answer space).
Answer: 16
- 15 + 1 = 16
10.One more than 12 is (answer space).
Answer: 13
- 12 + 1 = 13
11.One less than 15 is (answer space).
Answer: 14
- 15 − 1 = 14
12.One more than 2 is (answer space).
Answer: 3
- 2 + 1 = 3
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.