Răspuns:
10:10=1
VERIFICARE:10x1=10
0:5=0
VERIFICARE:5x0=0
3:3=1
VERIFICARE:3x1=3
7:1=7
VERIFICARE:7x1=7
2:2=1
VERIFICARE:2x1=2
70:10=7
VERIFICARE:7x10=70
50:10:1=5
VERIFICARE:5x10x1=50
90:10:9=1
VERIFICARE:1x9x10=90
30:10=3
VERIFICARE:3x10=30
20:10:2=1
VERIFICARE:1x2x10=20
60:6:10=1
VERIFICARE:1x10x6=60