Grade 2 · Math · Challenge
Free Addition Within 100 worksheet - version 3
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-YZFFH4-7SAY
1.
75 + 8 =
2.
61 + 39 =
3.
27 + 46 =
4.
5 + 48 =
5.
48 + 52 =
6.
23 + 53 =
7.
54 + 5 =
8.
69 + 31 =
9.
12 + 35 =
10.
23 + 56 =
11.
47 + 39 =
12.
72 + 28 =
13.
76 + 0 =
14.
3 + 21 =
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 3
- 75 + 8 =83
- 61 + 39 =100
- 27 + 46 =73
- 5 + 48 =53
- 48 + 52 =100
- 23 + 53 =76
- 54 + 5 =59
- 69 + 31 =100
- 12 + 35 =47
- 23 + 56 =79
- 47 + 39 =86
- 72 + 28 =100
- 76 + 0 =76
- 3 + 21 =24
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.