Question

3- calcule as expressões abaixo

a) (+15) + (+20) =
b) (+12) + (-12 ) =
c) (-15) + (+9 )=
d) (+6) + ( 0 )=
e) (-8) + ( -10 )=
f) (-9) + ( -9 )=
g) (+15) + ( -15 )=
h) (+20) + ( +20 )=​

Answer 1

Resposta:

a) 35

b) 0

c) -6

d) 6

e) -18

f) -18

g) 0

h) 40