Question

1 ) EFETUE AS MULTIPLICAÇÕES
(A) (+4).(+5) =
(B) (-9).(-2) =
(C) (+7).(-3) =
(D) (-9).(+4) =
(E) (+20).(-5) =
(F) (-7).(+9) =

Answer 1

Resposta:

(A) (+4).(+5) = +20

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

(C) (+7).(-3) = -21

(D) (-9).(+4) = -36

(E) (+20).(-5) = -100

(F) (-7).(+9) = -63