Răspuns :
71:9=7
63
rest 8
18:5=3
15
rest 3
15:8=1
rest 7
7:8=??
33:5=7
30
rest 3
7:3=2
rest 1
63
rest 8
18:5=3
15
rest 3
15:8=1
rest 7
7:8=??
33:5=7
30
rest 3
7:3=2
rest 1