Year 1 Ten More, Ten Less (and One More, One Less) Worksheet — Level 1 — 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 — Level 1 — Answers
Use place value: ten more or ten less changes the tens digit.
1.One less than 71 is (answer space).
Answer: 70
- 71 − 1 = 70
2.One more than 36 is (answer space).
Answer: 37
- 36 + 1 = 37
3.Ten more than 67 is (answer space).
Answer: 77
- 67 + 10 = 77
4.One more than 50 is (answer space).
Answer: 51
- 50 + 1 = 51
5.Ten less than 30 is (answer space).
Answer: 20
- 30 − 10 = 20
6.Ten more than 30 is (answer space).
Answer: 40
- 30 + 10 = 40
7.Ten more than 89 is (answer space).
Answer: 99
- 89 + 10 = 99
8.Ten more than 81 is (answer space).
Answer: 91
- 81 + 10 = 91
9.Ten more than 48 is (answer space).
Answer: 58
- 48 + 10 = 58
10.One more than 0 is (answer space).
Answer: 1
- 0 + 1 = 1
11.Ten less than 93 is (answer space).
Answer: 83
- 93 − 10 = 83
12.One more than 1 is (answer space).
Answer: 2
- 1 + 1 = 2
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.