Question

a) ( ) . ( – 3) = + 12

b) (– 50 ) : ( ) = – 5

c) (- 9 ) + (– 3) = ______

d) 8 + ( – 20) = ______

e) ( ) + ( +3 ) = – 2

f) ( – 8 ) . ( – 9 ) = _______

g) - 12 – ( – 6 ) = _______

h) ( + 3 ) . ( - 3 ) . ( -3 ) . ( - 3 ) = ______

i) ____ + 15 = – 10

j) ____ – 9 = 0

Answer 1

Resposta:

-4

10

-6

-12

-5

-72

-6

?? (não sei)

-25

9