calculati decat a,b,,c,d,e (ex 6) vă rog ajutatima ai faceți și rezolvarea

a) 600:8:3+525:5-720:9 =
= 75:3+105-8
= 25+105-8
=130-8
=122
b) 9+(9x9:9-9)+220-20x0=
=9+(81:9-9)+220-0
=9+(9-9)+220
=9+0+220
=229
c) 12x10:6-(200-20):9+36:2-2=
=120:6 - 180:9 +18-2=
=20-20+16=16
d) 25 x (160-30x5) - 8- (24+6:6)=
= 25 x (160-150) - 8- (24+1)=
=25x10 - 8 - 25=
=250-8-25=
= 242 - 25=
= 217
e) (180-3x10) :5+24x9-(120-52:2) =
=( 180-30) :5 + 216 - (120-26)=
= 150:5 + 216 - 94=
=30+216-94=
=246-94
=152