Grade 2 · Math · Challenge
Free Addition Within 100 worksheet - version 1
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-ZJEMV2-7SAY
1.25 + 66 =
2.43 + 57 =
3.52 + 46 =
4.58 + 33 =
5.48 + 52 =
6.2 + 33 =
7.1 + 84 =
8.91 + 9 =
9.12 + 0 =
10.23 + 77 =
11.74 + 9 =
12.46 + 41 =
13.28 + 72 =
14.30 + 13 =
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 1
- 25 + 66 =91
- 43 + 57 =100
- 52 + 46 =98
- 58 + 33 =91
- 48 + 52 =100
- 2 + 33 =35
- 1 + 84 =85
- 91 + 9 =100
- 12 + 0 =12
- 23 + 77 =100
- 74 + 9 =83
- 46 + 41 =87
- 28 + 72 =100
- 30 + 13 =43
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.