1st Grade Ten More, Ten Less (and One More, One Less) Worksheet — Getting Started — Practice Set 2 — Answers
Answer sheet with worked solutions for the 1st Grade place value worksheet.
Success TutoringWorksheetsAnswer sheet1st Grade · Mathematics · Place Value1st Grade 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 15 is (answer space).
Answer: 16
- 15 + 1 = 16
2.One more than 11 is (answer space).
Answer: 12
- 11 + 1 = 12
3.One less than 9 is (answer space).
Answer: 8
- 9 − 1 = 8
4.One less than 16 is (answer space).
Answer: 15
- 16 − 1 = 15
5.One less than 6 is (answer space).
Answer: 5
- 6 − 1 = 5
6.One more than 3 is (answer space).
Answer: 4
- 3 + 1 = 4
7.One less than 15 is (answer space).
Answer: 14
- 15 − 1 = 14
8.One more than 2 is (answer space).
Answer: 3
- 2 + 1 = 3
9.One more than 13 is (answer space).
Answer: 14
- 13 + 1 = 14
10.One more than 19 is (answer space).
Answer: 20
- 19 + 1 = 20
11.One less than 8 is (answer space).
Answer: 7
- 8 − 1 = 7
12.One more than 14 is (answer space).
Answer: 15
- 14 + 1 = 15
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.