Question

31+(-40) : (+2)=
-10-20:(+4)=
7:(-7) +2.(-6)+11=
35-6.(+6)+(+54)=
2+(-75):(-5)-4.(-1)=

Answer 1

b) -10-20:(+4)=
-10-5 = -15
c) 7:(-7) +2.(-6)+11=
-1-12+11 = -2
d) 35-6.(+6)+(+54)=
35-36+54 = 53
e)2+(-75):(-5)-4.(-1)=
2+15+4 = 21