Question

Questão 1: Efetue as multiplicações:
a) ( + 5 ) . ( + 3 ) = ___________
b)( + 4 ) . ( – 50 ) = ___________
c) ( – 8 ) . ( + 12 ) = ___________
d)( – 7 ) . ( – 7 ) = ___________
e) ( – 2 ) . ( + 4 ) . ( + 3 ) . ( – 10 ) = ___________
f) ( – 25 ) . ( – 6 ) . ( – 2 ) = ___________
g)2 . (– 20 ) . ( + 10 ) = ___________
h)(– 4 ) . 5 . ( – 7 ) = ___________
i) (– 100) . 0 = ___________

Answer 1

Resposta:

A)15

B)-200

C)-96

D)+49

E)+240

F)-300

G)-400

H)+140

I)0