Year 4 Ten More, Ten Less (and One More, One Less) Worksheet — Getting Started — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 4 place value worksheet.
Success TutoringWorksheetsAnswer sheetYear 4 · Mathematics · Place ValueYear 4 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 more than 9 is (answer space).
Answer: 10
- 9 + 1 = 10
2.One less than 1 is (answer space).
Answer: 0
- 1 − 1 = 0
3.One more than 18 is (answer space).
Answer: 19
- 18 + 1 = 19
4.One less than 17 is (answer space).
Answer: 16
- 17 − 1 = 16
5.One less than 5 is (answer space).
Answer: 4
- 5 − 1 = 4
6.One less than 8 is (answer space).
Answer: 7
- 8 − 1 = 7
7.One more than 8 is (answer space).
Answer: 9
- 8 + 1 = 9
8.One less than 18 is (answer space).
Answer: 17
- 18 − 1 = 17
9.One more than 15 is (answer space).
Answer: 16
- 15 + 1 = 16
10.One less than 2 is (answer space).
Answer: 1
- 2 − 1 = 1
11.One less than 4 is (answer space).
Answer: 3
- 4 − 1 = 3
12.One more than 3 is (answer space).
Answer: 4
- 3 + 1 = 4
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.