Grade 2 · Math · Challenge
Free Addition Within 100 worksheet - version 10
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-1CX0T1M-7SAY
1.55 + 45 =
2.16 + 58 =
3.100 + 0 =
4.21 + 9 =
5.16 + 19 =
6.77 + 23 =
7.86 + 14 =
8.64 + 36 =
9.47 + 30 =
10.6 + 46 =
11.45 + 8 =
12.0 + 46 =
13.69 + 31 =
14.41 + 20 =
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 10
- 55 + 45 =100
- 16 + 58 =74
- 100 + 0 =100
- 21 + 9 =30
- 16 + 19 =35
- 77 + 23 =100
- 86 + 14 =100
- 64 + 36 =100
- 47 + 30 =77
- 6 + 46 =52
- 45 + 8 =53
- 0 + 46 =46
- 69 + 31 =100
- 41 + 20 =61
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.