Year 1 Ten More, Ten Less (and One More, One Less) Worksheet — Getting Started — Practice Set 2 — 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 2 — Answers
Use place value: ten more or ten less changes the tens digit.
1.One more than 14 is (answer space).
Answer: 15
- 14 + 1 = 15
2.One more than 10 is (answer space).
Answer: 11
- 10 + 1 = 11
3.One less than 10 is (answer space).
Answer: 9
- 10 − 1 = 9
4.One more than 0 is (answer space).
Answer: 1
- 0 + 1 = 1
5.One more than 18 is (answer space).
Answer: 19
- 18 + 1 = 19
6.One more than 11 is (answer space).
Answer: 12
- 11 + 1 = 12
7.One more than 16 is (answer space).
Answer: 17
- 16 + 1 = 17
8.One more than 9 is (answer space).
Answer: 10
- 9 + 1 = 10
9.One more than 4 is (answer space).
Answer: 5
- 4 + 1 = 5
10.One less than 3 is (answer space).
Answer: 2
- 3 − 1 = 2
11.One less than 16 is (answer space).
Answer: 15
- 16 − 1 = 15
12.One more than 17 is (answer space).
Answer: 18
- 17 + 1 = 18
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.