Question

1-CALCULE:
(+8).(-9)=
(-8).(+6)=
(-6).(-5)=
(+5).(-11)
(+7).(+4)=
0.(+13)=
(+9).(+7)=
(-6).(-18)=​

Answer 1

Resposta:

(+8).(-9)= -72

(-8).(+6)= -48

(-6).(-5)= 30

(+5).(-11)= -55

(+7).(+4)= 28

0.(+13)= 0

(+9).(+7)= 63

(-6).(-18)= 108