Year 1 Ten More, Ten Less (and One More, One Less) Worksheet — Getting Started — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 1 place value worksheet.
Success TutoringWorksheetsAnswer sheetYear 1 · Mathematics · Place ValueYear 1 Ten More, Ten Less (and One More, One Less) Worksheet — Getting Started — Practice Set 4 — Answers
Use place value: ten more or ten less changes the tens digit.
1.One more than 6 is (answer space).
Answer: 7
- 6 + 1 = 7
2.One more than 4 is (answer space).
Answer: 5
- 4 + 1 = 5
3.One less than 6 is (answer space).
Answer: 5
- 6 − 1 = 5
4.One less than 16 is (answer space).
Answer: 15
- 16 − 1 = 15
5.One less than 10 is (answer space).
Answer: 9
- 10 − 1 = 9
6.One less than 14 is (answer space).
Answer: 13
- 14 − 1 = 13
7.One less than 12 is (answer space).
Answer: 11
- 12 − 1 = 11
8.One less than 8 is (answer space).
Answer: 7
- 8 − 1 = 7
9.One less than 13 is (answer space).
Answer: 12
- 13 − 1 = 12
10.One more than 8 is (answer space).
Answer: 9
- 8 + 1 = 9
11.One less than 15 is (answer space).
Answer: 14
- 15 − 1 = 14
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.