Question

Por favor me ajudem Efetue as multiplicações : 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)

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