Grade 2 · Math · Building Confidence
Free Addition Within 100 worksheet - version 15
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-I2NK33-1DIA
1.18 + 63 =
2.92 + 8 =
3.82 + 18 =
4.51 + 49 =
5.77 + 13 =
6.10 + 47 =
7.85 + 15 =
8.39 + 61 =
9.16 + 0 =
10.1 + 31 =
11.63 + 23 =
12.81 + 19 =
13.55 + 37 =
14.99 + 1 =
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 15
- 18 + 63 =81
- 92 + 8 =100
- 82 + 18 =100
- 51 + 49 =100
- 77 + 13 =90
- 10 + 47 =57
- 85 + 15 =100
- 39 + 61 =100
- 16 + 0 =16
- 1 + 31 =32
- 63 + 23 =86
- 81 + 19 =100
- 55 + 37 =92
- 99 + 1 =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.