Respuestas

2013-04-06T21:07:50+02:00

a... 20.2.7.2....b....83 +1/2.2...c...16.83+1/21.2

2013-04-06T21:32:14+02:00

A- 8*5= 40*(7*2) = 560

 

B- (8*2)= 1/2+2

 

C- (12*12)=144+(9*5)=189-(12*2)=165*(2*2) =660

 

D- (8*2)*(12*7)=(6*7)