1). 6786x32-32+320x3+[50+300x(600+5)]=
=6786x32-32+32x3+(50+300x605)=
=6786x32-32+320x3+181500=
=217152-32+960+181500=
=217120+960+181500=
=399580
2). 27x103+7202:26-69=
=2781+277-69=
=2989
3). 126x291:7+1549-39:13=
=36666:7+1549-3=
=5238+1549-3=
=6784
sper sa fie bine