Grade 2 · Math · Challenge
Free Addition Within 100 worksheet - version 14
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-1BT2E9Q-7SAY
1.72 + 28 =
2.78 + 22 =
3.79 + 21 =
4.56 + 44 =
5.15 + 8 =
6.1 + 69 =
7.29 + 3 =
8.91 + 9 =
9.44 + 56 =
10.33 + 8 =
11.57 + 43 =
12.21 + 71 =
13.16 + 10 =
14.33 + 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 14
- 72 + 28 =100
- 78 + 22 =100
- 79 + 21 =100
- 56 + 44 =100
- 15 + 8 =23
- 1 + 69 =70
- 29 + 3 =32
- 91 + 9 =100
- 44 + 56 =100
- 33 + 8 =41
- 57 + 43 =100
- 21 + 71 =92
- 16 + 10 =26
- 33 + 67 =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.