Ordinea efectuarii oparatiilor (56:7+63:9+34):7+12:3:2=

Răspuns :

(56:7+63:9+34):7+12:3:2=

(8+7+34):7+4:2=

49:7+4:2=

7+2=9

(56:7+63:9+34):7+12:3:2=

=(8+7+34):7+12:3:2=

=49:7+12:3:2=

=7+4:2=

=7+2=

9