Question

(+3) . (+30)
(-3) . (-30)

Answer 1

e)19-(-4).(+5)=
19 +4.5 = 
19+20=39

f)7.(-3)-9.(-6)+11.(-2)=
-21+54+-22=
-43+76=33

g)(+5).(+11)-37-(-2).(+14)=
55-37+2.14=
18+28=46

h)18-3.(-7)+9.(-4)-20=
18+21-36-20=
39-56= -17

(+3) . (+30)= +90
(-3) . (-30)= +90