28 - 4 X 7 =
36 - 4 X 9 =
24 - 4 X 6 =
15 - 3 X 5 =
27 - 3 X 9 =
18 - 2 X 9 =
16 - 2 X 8 =
12 - 2 X 6 =
0 - 3 X 0 =