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