Respuestas

2012-06-29T00:25:33+02:00

(3 - 8) + [5 - (-2) ] = -5 + (5+2) = -5 + 7 = 2

 

5 - [6 - 2 - (1 - 8) - 3 + 6] +5 = 5 - (6 - 2 -1 + 8 - 3 + 6) + 5 = 5 - 6 + 2 + 1 - 8 + 3 - 6 + 5 =  -4

 

9 : [6 : (-2) ] = 9 : (-3) = -3

 

suerte! :)

2012-06-29T00:40:05+02:00

1)   (3-8)  + {5 -(-2)}

 

-5  + 7 = 2

 

2)   5- [6-2 -(1-8)-3+6]+5   = 10- [7- (-7)] = 10 -14 = -4 

 

 3) 9 : [6 : (-2)] = 9 :[-3] = -3