  =  

[IMG]
vers6/1.png
 (3 .) = 

[IMG]
vers6/2.png
 = 

[IMG]
vers6/3.png
  (3 .) +  (2 .) +  +  (3 .) = 

[IMG]
vers6/4.png
  (8 .) +  =  

[IMG]
vers6/5.png
  (4 .) = 

[IMG]
vers6/6.png
  = 

[IMG]
vers6/7.png
 =   (3 .)

[IMG]
vers6/8.png
 (5 .) = 

[IMG]
vers6/9.png
 +  =  (4 .)