Question

a) [(-10)+6]:[(-4)×(-2)-10]
b)9×10:[(-3)+(-10)-2]
c)[9:(-9)+5]×[(-7)-3]
d)[7×3-(-4)]:[(-5)+10]
e) (-6)×(5-8:(-9)+10

Answer 1

a) [(-10)+6]:[(-4)×(-2)-10] =

=-4:(8-10)

=-4:(-2)

=2

b) 9×10:[(-3)+(-10)-2]=

=9×10:(-15)

=90:(-15)

=-6

c) [9:(-9)+5]×[(-7)-3]=

=(-1+5)×(-10)

=4×(-10)

=-40

d) [7×3-(-4)]:[(-5)+10]=

=(21-4):5

=17/5

e) (-6)×[5-8:(-9)+10]=

=-6×(5+8/9+10) (amplificam 5 si 10 cu 9)

=-6×(45/9+8/9+90/9)

=-6×143/9

=-286/3