Include:
Answer key:
Theme:
Addition within 20
Solve each addition problem. Show your work if needed.
1. 6 + 13 = ?
17
18
20
19
2. 9 + 3 =
3. 12 + 6 =
4. 12 + 7 =
5. 5 + 3 =
6. 12 + 5 =
7. 4 + 10 = ?
14
13
15
10
8. 15 + 1 = ?
17
15
16
13
9. 9 + 6 = ?
15
14
16
17
10. 2 + 12 = ?
14
19
15
13
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