Question

vă rog eu să mă ajutaţi vă rog :(

Answer 1

a) (7×7+7:7)×7=(49+1)×7=50×7=350
(20:2+28)×2=(10+28)×2=38×2=76
(18×2+18):6=(36+18):6=54:6=9
b) 196-3×(89-45)=196-3×44=
196-132=64
36×2×(12+47)=36×2×59=72×59=4248
15+60:(39-29)=15+60:10=15+6=21
c) 1000-(35+60×2)+40=
1000-(35+120)+40=
1000-155+40=
845+40=
885

999+(10:2+4)-501=999+(5+4)-501=
999+9-501=1008-501=507

50+(40+80×100)×50=
50+(40+8000)×50=
50+8040×50=
50+402000=
402050