Grade 2 · Math · Challenge
Free Addition Within 100 worksheet - version 8
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-XLHF09-7SAY
1.
76 + 24 =
2.
42 + 58 =
3.
44 + 56 =
4.
50 + 50 =
5.
9 + 69 =
6.
9 + 43 =
7.
37 + 31 =
8.
82 + 18 =
9.
69 + 31 =
10.
63 + 37 =
11.
12 + 31 =
12.
83 + 17 =
13.
91 + 9 =
14.
75 + 25 =
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 8
- 76 + 24 =100
- 42 + 58 =100
- 44 + 56 =100
- 50 + 50 =100
- 9 + 69 =78
- 9 + 43 =52
- 37 + 31 =68
- 82 + 18 =100
- 69 + 31 =100
- 63 + 37 =100
- 12 + 31 =43
- 83 + 17 =100
- 91 + 9 =100
- 75 + 25 =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.