ajtor dau coroana si 5 stele

Răspuns:
a·b=102·98=9996
b·c=98·75=7350
a(b+c)=102(98+75)=102·173=17646
(a-b)·c=(102-98)·75=4·75=300
a·b-c=102·98-75=9996-75=9921