7 × 6 = 42
Proba :
42 : 6 = 7
42 : 7 = 6
32 : 8 = 4
Proba:
8 × 4 = 32
4 × 8 = 32
9 × 3 = 27
Proba:
27 : 3 = 9
27 : 9 = 3
63 : 7 = 9
Proba :
7 × 9 = 63
9 × 7 = 63
48 : 6 = 8
Proba :
6 × 8 = 48
8 × 6 = 48
8 × 2 = 16
Proba :
16 : 2 = 8
16 : 8 = 2
6 × 3 : 2 = 9
Proba:
9 × 2 : 3 = 6
9 : 3 × 2 = 6
72 : 8 × 4 =36
Proba :
36 : 4 × 8 = 72
