Question

a) ( -20 ) . ( +4 ) =

b) ( +23 ) . ( +3 ) =

c) ( -40 ) : ( +2 ) =

d) ( +18 ) : ( -3 ) =
​

Answer 1

Explicação passo-a-passo:

a) (-20).(+4) = -80

b) (+23).(+3) = 69

c) (-40) : (+2) = -20

d) (+18) : (-3) = -6