Grade 2 · Math · Challenge
Free Addition Within 100 worksheet - version 2
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-Z9F163-7SAY
1.
8 + 10 =
2.
19 + 31 =
3.
23 + 46 =
4.
42 + 58 =
5.
27 + 15 =
6.
71 + 29 =
7.
4 + 13 =
8.
54 + 46 =
9.
56 + 44 =
10.
25 + 3 =
11.
50 + 50 =
12.
65 + 26 =
13.
18 + 82 =
14.
10 + 38 =
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 2
- 8 + 10 =18
- 19 + 31 =50
- 23 + 46 =69
- 42 + 58 =100
- 27 + 15 =42
- 71 + 29 =100
- 4 + 13 =17
- 54 + 46 =100
- 56 + 44 =100
- 25 + 3 =28
- 50 + 50 =100
- 65 + 26 =91
- 18 + 82 =100
- 10 + 38 =48
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.