Question

1) (31-12)*(32-62)= 2) (39-57):(27-18)= 3) 5*(74-93)= 4) (7-13)*(192-184)= 5) (87-68-22):3=

Answer 1

1) 31-12=19

32-62=-30

19*(-30)=-570

2) 39-57=-18

27-18=9

-18:9=-2

3) 74-93=-19

5*(-19)=-95

Answer 2

1) 19•(-30)= -570
2) -18:9= -2
3) 5•(-19)= -95
4)-6•8= -48
5)-3:3= -1