Răspuns :
600+480:4 - [68:2+4 x (20 + 12-18)]=
20+12-18=14()
68:2+4 x 14 =34+ 56=90[ ]
600+120-90=720-90=630
20+12-18=14()
68:2+4 x 14 =34+ 56=90[ ]
600+120-90=720-90=630
600+480÷4-[68:2+4×(20+12-18)]=
=600+120-(34+4×14)
=600+120-(34+56)
=600+120-90
=630
=600+120-(34+4×14)
=600+120-(34+56)
=600+120-90
=630