Calculeaza: 18-(20-6):7-4-4×2

Răspuns :

18-(20-6):7-4-4×2=
18-14:7-4-4×2=
18-2-4-8=
16-4-8=
12-8=
4
18-(20-6):7-4-4×2=
18-14:7-4-4×2=
18-14:7-4-8=
18-2-4-8=
18-14=
4