Second grade math problems - Addition and Subtraction within 20

3+3 =
4+4 =
5+5 =
6+6 =
6+7 =
7+8 =
8+9 =
4+5 =
9+8 =
7+5 =
6+9 =
15-7 =
18-9 =
12-5 =
16-8 =
20-11 =