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

Answer 3

Let's solve the given mathematical expressions:

1. (31-12)(32-62) = (19)( -30) = -570

2. (39-57):(27-18) = (-18) / 9 = -2

3. 5*(74-93) = 5*(-19) = -95

4. (7-13)(192-184) = (-6)(8) = -48

5. (87-68-22) / 3 = (-3) / 3 = -1