Cuadrado de 12
23+56+12
5 x 6 + 8
(13) (x) = 117
6 / 6
56 / x = 7
23 + 26 - 21 - 22
88 / 8
(8) (x) = 3,200
15 + 18 - 5
8 + 4 - 5
91
8
144
400
11
1
38
6
9
7
28
