Grade 2 · Math · Challenge
Free Addition Within 100 worksheet - version 17
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-1BJ2SKR-7SAY
1.51 + 49 =
2.35 + 28 =
3.20 + 39 =
4.25 + 0 =
5.25 + 37 =
6.4 + 37 =
7.56 + 19 =
8.39 + 61 =
9.76 + 24 =
10.8 + 19 =
11.47 + 53 =
12.42 + 50 =
13.16 + 21 =
14.93 + 7 =
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 17
- 51 + 49 =100
- 35 + 28 =63
- 20 + 39 =59
- 25 + 0 =25
- 25 + 37 =62
- 4 + 37 =41
- 56 + 19 =75
- 39 + 61 =100
- 76 + 24 =100
- 8 + 19 =27
- 47 + 53 =100
- 42 + 50 =92
- 16 + 21 =37
- 93 + 7 =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.