Fill in the blanks with the correct number.

1. 4 + 4 = 8 + 0

2. 8 + 2 = 6 + 4

3. 3 + 3 = 1 + 5

4. 10 + 10 = 15 + 5

5. 6 + 6 = 10 + 2

6. 8 + 6 = 9 + 5

7. 8 + 2 = 10 + 0

8. 5 + 3 = 7 + 1

9. 14 + 10 = 10 + 14

10. 9 + 6 = 8 + 7

11. 10 + 4 = 7 + 7

12. 12 + 8 = 10 + 10

13. 11 + 1 = 10 + 2

14. 1 + 9 = 3 + 7

15. 17 + 2 = 15 + 4

16. 16 + 4 = 18 + 2