68×[(228048+599016):(20421-20349)]-(180:15×12345):10

Răspuns :

68×[(228048+599016):(20421-20349)]-(180:15×12345):10 =
=
68×(827064:72)-(12×12345):10 =
=68×11487-148140:10 =
=781116-14814=766302