Question

efetue as multiplicaçoes

a- (+8).(+5) b-(-8).(-5) c-(+8).(-5) d-(-8).(+5)

e(-3).(+9) f-(+3).(-9) g-(-3).(-9) h-(+3).(+9)

i-(+7).(-10) j-(+7).(+10) l(-7).(+10) m-(-7).(-10)

n-(+4).(+3) o-(-5).(+7) p-(+9).(-2) q-(-8).(-7)

r-(-4).(+6) s-(-2).(-4) t-(+9).(+5) u-(+4).(-2)

Answer 1

a- (+8).(+5)= +40
b-(-8).(-5)=+40
c-(+8).(-5) =-40
d-(-8).(+5)=-40
e(-3).(+9)= -27
f-(+3).(-9) =-27
g-(-3).(-9)= +27
h-(+3).(+9)=+27
i-(+7).(-10) =-70
j-(+7).(+10)= +70
l(-7).(+10)=-70
m-(-7).(-10)=+70
n-(+4).(+3)=+ 12
o-(-5).(+7)= -35
p-(+9).(-2) =-18
q-(-8).(-7) = +56
r-(-4).(+6) = -24
s-(-2).(-4)= +8
t-(+9).(+5)= +45
u-(+4).(-2)= -8

Answer 2

Resposta:

a- (+8).(+5)= +40

b-(-8).(-5)=+40

c-(+8).(-5) =-40

d-(-8).(+5)=-40

e(-3).(+9)= -27

f-(+3).(-9) =-27

g-(-3).(-9)= +27

h-(+3).(+9)=+27

i-(+7).(-10) =-70

j-(+7).(+10)= +70

l(-7).(+10)=-70

m-(-7).(-10)=+70

n-(+4).(+3)=+ 12

o-(-5).(+7)= -35

p-(+9).(-2) =-18

q-(-8).(-7) = +56