Grade 2 · Math · Challenge
Free Addition Within 100 worksheet - version 13
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 · Stretch challenge · 14 questions · Version PG-1CN17CN-7SAY
1.62 + 17 =
2.70 + 30 =
3.32 + 46 =
4.81 + 19 =
5.62 + 38 =
6.90 + 10 =
7.55 + 45 =
8.67 + 5 =
9.86 + 14 =
10.45 + 55 =
11.38 + 2 =
12.5 + 84 =
13.44 + 5 =
14.70 + 28 =
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 13
- 62 + 17 =79
- 70 + 30 =100
- 32 + 46 =78
- 81 + 19 =100
- 62 + 38 =100
- 90 + 10 =100
- 55 + 45 =100
- 67 + 5 =72
- 86 + 14 =100
- 45 + 55 =100
- 38 + 2 =40
- 5 + 84 =89
- 44 + 5 =49
- 70 + 28 =98
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.