Grade 2 · Math · Challenge
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 · Stretch challenge · 14 questions · Version PG-1B901DT-7SAY
1.69 + 31 =
2.77 + 23 =
3.79 + 14 =
4.78 + 22 =
5.85 + 15 =
6.11 + 69 =
7.93 + 7 =
8.14 + 63 =
9.51 + 49 =
10.34 + 33 =
11.95 + 5 =
12.94 + 6 =
13.32 + 68 =
14.34 + 42 =
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
- 69 + 31 =100
- 77 + 23 =100
- 79 + 14 =93
- 78 + 22 =100
- 85 + 15 =100
- 11 + 69 =80
- 93 + 7 =100
- 14 + 63 =77
- 51 + 49 =100
- 34 + 33 =67
- 95 + 5 =100
- 94 + 6 =100
- 32 + 68 =100
- 34 + 42 =76
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.