Question

a) (+4) + ( + 5 ) =
b) (+ 4) + (-6)=
c) (-4) + (-8)=
d) (+3)-(+5) =
e) (+4)-(-5) =
f) (-7) - (-10) =​

Answer 1

a) 9
b) -2
c) -12
d) -2
e) 9
f) 3