Grade 2 · Math · Challenge
Free Addition Within 100 worksheet - version 11
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-1D70EQL-7SAY
1.29 + 71 =
2.15 + 35 =
3.82 + 18 =
4.5 + 18 =
5.84 + 4 =
6.61 + 39 =
7.71 + 29 =
8.95 + 5 =
9.100 + 0 =
10.0 + 61 =
11.94 + 6 =
12.70 + 30 =
13.3 + 1 =
14.29 + 67 =
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 11
- 29 + 71 =100
- 15 + 35 =50
- 82 + 18 =100
- 5 + 18 =23
- 84 + 4 =88
- 61 + 39 =100
- 71 + 29 =100
- 95 + 5 =100
- 100 + 0 =100
- 0 + 61 =61
- 94 + 6 =100
- 70 + 30 =100
- 3 + 1 =4
- 29 + 67 =96
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.