Grade 2 · Math · Challenge
Free Addition Within 100 worksheet - version 5
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-10ND1MY-7SAY
1.
70 + 4 =
2.
64 + 34 =
3.
57 + 43 =
4.
92 + 8 =
5.
100 + 0 =
6.
89 + 11 =
7.
82 + 9 =
8.
41 + 59 =
9.
49 + 19 =
10.
53 + 6 =
11.
38 + 39 =
12.
66 + 34 =
13.
15 + 42 =
14.
16 + 54 =
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 5
- 70 + 4 =74
- 64 + 34 =98
- 57 + 43 =100
- 92 + 8 =100
- 100 + 0 =100
- 89 + 11 =100
- 82 + 9 =91
- 41 + 59 =100
- 49 + 19 =68
- 53 + 6 =59
- 38 + 39 =77
- 66 + 34 =100
- 15 + 42 =57
- 16 + 54 =70
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.