Grade 2 · Math · Building Confidence
Free Addition Within 100 worksheet - version 20
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-LORULN-1DIA
1.44 + 56 =
2.80 + 20 =
3.84 + 16 =
4.29 + 71 =
5.38 + 5 =
6.30 + 70 =
7.34 + 3 =
8.94 + 6 =
9.23 + 42 =
10.86 + 14 =
11.62 + 38 =
12.69 + 31 =
13.31 + 29 =
14.77 + 23 =
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 20
- 44 + 56 =100
- 80 + 20 =100
- 84 + 16 =100
- 29 + 71 =100
- 38 + 5 =43
- 30 + 70 =100
- 34 + 3 =37
- 94 + 6 =100
- 23 + 42 =65
- 86 + 14 =100
- 62 + 38 =100
- 69 + 31 =100
- 31 + 29 =60
- 77 + 23 =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.