Question

Calcule:
a) (+3) + (-7 ) =
b) (+4) + (+9) =
C) (+6) + (+12) + (-2) =
d) (+1) + (+2) + (+3) + (-5) =
e) (+ 3) + (-2) =
1) (-4) + (+10) =
9) (+5) + (- 6) + (+ 3) =
h) (-2) + (+ 4) + (- 6) + (+ 4) =

Answer 1

a) 4

b)13

c)16

d)1

e)1

f)6

g)2

h)0