Question

Calcule as expressões numéricas:
a) (+3) . (-6)=
b) (-2) . (+5)=
c) (+1) . (+8)=
d) (+7) . (-3)=
e) (+3) . (+15)=
f) (+16) . (-7)=​

Answer 1

Resposta:

a)-18

b) -10

c)8

d)-21

e)45

f)-112

Answer 2

Resposta:

a) -18

b) - 10

c) + 8

d) -21

e) +45

f) -117