Respostas

2013-04-10T19:27:07-03:00

: 28 : (-4) +9 x (-1) -3 x (5-16)
-7-1-15 +48=  25

 

 

  [(+8) (-27) -12 (-17) +3 x 16] : (1-7)

[-216+204+48]:-6

[-216+252]:6

36:6=  6

2 3 2