Question

Efetue:
a) (-4).(-5) =
b) (+20).(-3) =
d) - 60 - 23 - 4 =
C) + 50 - 80 =
e) 4 - 2 + 10 =
f) - 8 + 10 =
g) (-100): (-20) =
h) (+48): ( -8) =​

Answer 1

a)(-4)(-5)=+20

b) (+20).(-3) =-60

d) - 60 - 23 - 4=-87

C) + 50 - 80 =-30

e) 4 - 2 + 10 =12

f) - 8 + 10 =+4

g) (-100): (-20) =+5

h) (+48): ( -8) =-6