Răspuns :
7x6 = 42; 6x7 = 42 (proba inversă)
8x2 = 16; 2x8 = 16
9x3 = 27; 3x9 = 27
5x3 = 15; 3x5 = 15
8x2 = 16; 2x8 = 16
9x3 = 27; 3x9 = 27
5x3 = 15; 3x5 = 15
7 x 6 = 42
P: 6 x 7 = 42
42 : 7 = 6
42 : 6 = 7
8 x 2 = 16
P: 2 x 8 = 16
16 : 8 = 2
16 : 2 = 8
9 x 3 = 27
P: 3 x 9 = 27
27 : 9 = 3
27 : 3 = 9
5 x 3 = 15
P 3 x 5 = 15
15 : 5 = 3
15 : 3 = 5
P: 6 x 7 = 42
42 : 7 = 6
42 : 6 = 7
8 x 2 = 16
P: 2 x 8 = 16
16 : 8 = 2
16 : 2 = 8
9 x 3 = 27
P: 3 x 9 = 27
27 : 9 = 3
27 : 3 = 9
5 x 3 = 15
P 3 x 5 = 15
15 : 5 = 3
15 : 3 = 5