Please help- im so bad at this TvT

Step-by-step explanation:
10)-2
11)-11
12)-9
13)75/-25=-3
14)-30/-15=2
15)-20/5-5
=-4-5
=-9
16)90/-45=-2
17)-45/-15=2
18)-15 times 5/25
=-75/25
=-3
19)-15-(-45)/10
=-15+45/10
=30/10
=3
20)5-5/-1
=0/-1
=0
21)-(-15)/5
=15/5
=3
22)-45-15/-15
=-60/15
=-4
23)-15+(-45)/-5
=-15-45/-5
=-60/-5
=12
Have a nice day! :)
-Vana