Grade 1 · Math · On Level
Free Addition Within 20 worksheet - version 6
Practice addition facts and strategies with sums through 20. This printable version includes 14 grade-appropriate questions and a separate answer sheet.
Addition Within 20
Grade 1 · On-level practice · 14 questions · Version PG-8U79Y7-L19P
1.0 + 14 =
2.16 + 3 =
3.1 + 18 =
4.20 + 0 =
5.3 + 11 =
6.10 + 2 =
7.14 + 6 =
8.7 + 13 =
9.15 + 5 =
10.1 + 1 =
11.4 + 1 =
12.6 + 3 =
13.12 + 1 =
14.12 + 8 =
Answers and teaching notes
Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.
Show answers for version 6
- 0 + 14 =14
- 16 + 3 =19
- 1 + 18 =19
- 20 + 0 =20
- 3 + 11 =14
- 10 + 2 =12
- 14 + 6 =20
- 7 + 13 =20
- 15 + 5 =20
- 1 + 1 =2
- 4 + 1 =5
- 6 + 3 =9
- 12 + 1 =13
- 12 + 8 =20
Worked example
8 + 7 = 15. Make ten: 8 + 2 + 5 = 15.
Common mistake
Losing part of the second addend when making ten.
Helpful hint
Look for a way to make 10 first.