1. Adding Number Sets

2. 13 11 9 10 A B C D

3. 13 11 9 10 A B C D

4. 3 17 7 4 A B C D + =?

5. 3 17 7 4 A B C D + =?

6. 5 27 15 3 A B C D + =?

7. 5 27 15 3 A B C D + =?

8. 6 9 12 7 A B C D + =?

9. 6 9 12 7 A B C D + =?

10. 10 11 12 13 A B C D

11. 10 11 12 13 A B C D

12. 2 + 4 = ? A 2 B 6 C 4 D 8

13. 2 + 4 = ? A 2 B 6 C 4 D 8

14. 3 + 4 = ? A 5 B 2 C 7 D 4

15. 3 + 4 = ? A 5 B 2 C 7 D 4

16. 3 + ? = 7 A 1 B 2 C 3 D 4

17. 3 + ? = 7 A 1 B 2 C 3 D 4