Question

(300-100)-100:(10:5); 300-(100-100):(10:5).

Answer 1

1)200-100:2=200-50=150;2)(300-0):2=150

Answer 2

300-100=200
10/5=2
100/2=50
200-50=150

100-100=0
10/5=2
0/2=0
300-0=300