Răspuns :
320-15•16-[1800▪︎(18•2-36•6)+9•7]÷
320-15•16-[1800•(36-36×6)+9+7]=
320-15×16-(1800-216-36+9+7)=
320-15×16-(1584-36+9+7)=
320-15×16-(1548+9+7)=
320-15×16-(1557+7)=
320-15×16-1564=
320-240-1564=
1564-80=1484.
Sper ca am ajutat!!
320-15×16-[1.800×(18×2-36×6)+9×7]
18×12=36
36×6=72
36-72=-36
9×7=63
1.800×(-36)=-64.800+63=−64.737
15×16=240-64.737=64.977
320-64.977=−64.657