3 x 6 / 2
10
5
21
2 x (8 - 3)
(9 - 3) / 2 =
15
2 x (3 + 5)
16
4
3
2 x 7 - 3
2 x 3 - 1
(3 + 5) / 2
12
8 / 2 x 3
11
9
7 + 2 x 4
3 x 14 / 2