Question

Calcule
(+5)+(+20)
(+2)+(-12)
(-15)+(+2)
(-6)-0
(-8)+(-10)

Answer 1

a) (+5)+(+20) = 25

b) (+2)+(-12) = (+2) -12 = -10

c) (-15)+(+2) = (-15)+2 = -13

d) (-6)-0 = 6

e) (-8)+(-10) = (-8)-10 = 2