Grade 2 · Math · Building Confidence
Free Addition Within 100 worksheet - version 8
Add one- and two-digit numbers with sums up to 100. This printable version includes 14 grade-appropriate questions and a separate answer sheet.
Addition Within 100
Grade 2 · Building confidence · 14 questions · Version PG-LPTSFF-1DIA
1.99 + 1 =
2.22 + 59 =
3.36 + 64 =
4.62 + 18 =
5.91 + 9 =
6.0 + 89 =
7.27 + 34 =
8.87 + 13 =
9.5 + 80 =
10.68 + 26 =
11.79 + 21 =
12.28 + 36 =
13.80 + 20 =
14.66 + 34 =
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 8
- 99 + 1 =100
- 22 + 59 =81
- 36 + 64 =100
- 62 + 18 =80
- 91 + 9 =100
- 0 + 89 =89
- 27 + 34 =61
- 87 + 13 =100
- 5 + 80 =85
- 68 + 26 =94
- 79 + 21 =100
- 28 + 36 =64
- 80 + 20 =100
- 66 + 34 =100
Worked example
38 + 24 = 62. Add ones: 8 + 4 = 12, regroup 1 ten, then add tens.
Common mistake
Forgetting to add the regrouped ten.
Helpful hint
Line up ones with ones and tens with tens.