Răspuns:
d) 5×{55×5-[(275-11)-55+5]}=
= 5×[55×5-(264-55+5)]=
= 5×(55×5-214)=
= 5×(275-214)=
= 5×61=
= 305
e) {[(150-98):2+76]×110-220}:500=
= [(52:2+76)×110-220]:500=
= [(26+76)×110-220]:500=
= (102×110-220):500=
= (11220-220):500=
= 11000: 500=
= 22
f) {[(5×10+178)×15+900]:60}:36=
= {[(50+178)×15+900]:60}:36=
= [(228×15+900):60]:36=
= [(3420+900):60]:36=
= (4320:60):36=
= 72:36=
= 2
Sper căte-am ajutat
