No. 4-8 tolong dijawab

4.(18:(-2)) : (15:(-5))=-9:-3=3
5.((-25)×12):((-15):(-5)=-300:3=-100
6.(-60-4):8×10=64:8=8×10=80
7.(55:(-11))=-5+((-14)×18)=5+-252=247
8.45-(21:7)=21:7=3,
24×6=144
45-3+144-83=103
9.8×125=1000
98-58=40×7=280+960=1240
10.(-120)×5=600:25=24+36=60
125-60=65