Question

raspundeți pls la toate, dau coroană!​

Answer 1

a) [(45+5)×8-20×5]:100=

[50×8-100]:100=

[400-100]:100=

300:100=3

b)200-[(25+25×25):13]=

200-[25+625]:13=

200-650:13=

200-50=150

c)2×[90:2+(120:4-20)]×10=

2×[90:2+30-20]×10=

2×[90:2+10]×10=

2×[45+10]×10=

2×55×10=

2×550=1100

d)2007+18:[2+16-108:27):3]=

2007+18:[2+16-4:3]=

2007+18:[2+4:3]=

2007+18:[6:3]=

2007+18:2=

2007+9=2016