Question

38-___:___=30
85-___:___=80
60-___:___=57
80-___:___=71
___-___*4=40
___-___*___=0
___+___:___=10
___+___:___=18
___+___:5=12
___:___+5=12
5*___+___=12
___*___-15=13

Answer 1

38-16:2=30
85-15:3=80
60-12:4=57
80-90:10=71

(20-10)•4=40
(45-16)•0=0
7+30:10=10
17+ 6:6=18

9+15:5=12
49:7+5=12
5•2+2=12
14•2-15=13