Question

Verifica fiecare rezultat prin scadere repetata. 4*5=20, 6*7=42, 9*4=36, 5*8=40.

Answer 1

4x 5 = 20
20 - 5 -5 -5- 5= 0

6 x 7 = 42
42 - 7 - 7 -7 -7 -7 - 7 = 0

9 x 4 = 36
36 - 4 -4 -4 -4-4-4-4-4-4 =0

5 x 8 = 40
40 - 8 -8-8-8-8 = 0.