2.OA.2b Adding 2 single-digit sums within 20

9 + 2 = ___

7 + 4 = ___

9 + 0 = ___

1 + 1 = ___

6 + 3 = ___

9 + 5 = ___

8 + 3 = ___

1 + 0 = ___

3 + 1 = ___

6 + 6 = ___