Grade 2 · Math · Challenge
Free Addition Within 100 worksheet - version 18
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-1AP3ZHU-7SAY
1.57 + 43 =
2.77 + 23 =
3.12 + 49 =
4.90 + 10 =
5.48 + 39 =
6.56 + 18 =
7.17 + 26 =
8.69 + 31 =
9.16 + 27 =
10.100 + 0 =
11.2 + 8 =
12.27 + 32 =
13.93 + 7 =
14.64 + 36 =
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 18
- 57 + 43 =100
- 77 + 23 =100
- 12 + 49 =61
- 90 + 10 =100
- 48 + 39 =87
- 56 + 18 =74
- 17 + 26 =43
- 69 + 31 =100
- 16 + 27 =43
- 100 + 0 =100
- 2 + 8 =10
- 27 + 32 =59
- 93 + 7 =100
- 64 + 36 =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.