0 + 8 = ____ 5 + 2 = ____ 2 + 4 = ____

10 + 6 = ____ 2 + 3= ____ 6 + 0 = ____

20 + 20 = ____ 7 + 6 = ____ 9 + 1 = ____

20 + 5 = ____ 6 + 6 = ____ 9 + 9 = ____

8 + 4= ____ 4 + 0 = ____ 1 + 1 = ____

2 + 3 = ____ 8 + 4 = ____ 7 + 1 = ____

40 + 1 = ____ 2 + 8 = ____ 9 + 3 = ____

9 + 9 = ____ 0 + 5 = ____ 3 + 7 = ____

30 + 10 = ____ 8 + 2 = ____ 5 + 2 = ____

8 + 8 = ____ 1 + 8 = ____ 8 + 2 = ____