Question

a) (+9) + (-5)
b) (+ 3) + (-4)
c) (-8) + (+6)
d) (+5) + (-9)
e) (-6) + (+2)​

Answer 1

Resposta:

$9+(-5)=4\\3+(-4)=-1\\(-8)+6=-2\\5+(-9)=-4\\(-6)+2=-4$

Answer 2

a) +4
b) -1
C) -2
D) -4
E-4