Question

23.Calcule as diferenças
a) (-5)-(-4) =
b) (-7)-(+2) =
c)(-1)-(-7) =
d) ( + 5)-( + 2) =
ize e) (-1)-(-2)-(-7)=
f) - (-8)-(+5)-(-3) =​

Answer 1

a) (-5)-(-4) = -9

b) (-7)-(+2) = -5

c)(-1)-(-7) = -8

d) ( + 5)-( + 2) = 3

e) (-1)-(-2)-(-7)= -10

f) - (-8)-(+5)-(-3) = 0