Addition Math Test

1: 2 + 1 = 11: 4 + 0 =
2: 2 + 1 = 12: 1 + 2 =
3: 8 + 5 = 13: 10 + 0 =
4: 3 + 0 = 14: 6 + 1 =
5: 9 + 9 = 15: 8 + 0 =
6: 6 + 0 = 16: 2 + 2 =
7: 4 + 0 = 17: 5 + 0 =
8: 8 + 0 = 18: 10 + 0 =
9: 3 + 3 = 19: 6 + 2 =
10: 1 + 1 = 20: 10 + 4 =