3rd Grade Ten More, Ten Less (and One More, One Less) Worksheet — Getting Started — Answers
Answer sheet with worked solutions for the 3rd Grade place value worksheet.
Success TutoringWorksheetsAnswer sheet3rd Grade · Mathematics · Place Value3rd Grade Ten More, Ten Less (and One More, One Less) Worksheet — Getting Started — Answers
Use place value: ten more or ten less changes the tens digit.
1.One less than 20 is (answer space).
Answer: 19
- 20 − 1 = 19
2.One more than 9 is (answer space).
Answer: 10
- 9 + 1 = 10
3.One more than 5 is (answer space).
Answer: 6
- 5 + 1 = 6
4.One more than 3 is (answer space).
Answer: 4
- 3 + 1 = 4
5.One less than 2 is (answer space).
Answer: 1
- 2 − 1 = 1
6.One more than 14 is (answer space).
Answer: 15
- 14 + 1 = 15
7.One less than 4 is (answer space).
Answer: 3
- 4 − 1 = 3
8.One less than 14 is (answer space).
Answer: 13
- 14 − 1 = 13
9.One less than 5 is (answer space).
Answer: 4
- 5 − 1 = 4
10.One more than 19 is (answer space).
Answer: 20
- 19 + 1 = 20
11.One less than 17 is (answer space).
Answer: 16
- 17 − 1 = 16
12.One less than 8 is (answer space).
Answer: 7
- 8 − 1 = 7
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.