1 + 3 = ____
2 + 3 = ___
3 + 2 = ___
___ = 3 + 7
4 + 4 = ___
5 + 5 = ___
3 + 3 = ___
5 + 6 = ___
9 + 6 = ___
8 + 4 = ___