  =  

[IMG]
vers2/1.png
  (3 .) +   (4 .) = 

[IMG]
vers2/2.png
 (6 .) = 

[IMG]
vers2/3.png
 (7 .) =  (3 .)

[IMG]
vers2/4.png
 (6 .) +  = 

[IMG]
vers2/5.png
/ ,  (9 .) = // 

[IMG]
vers2/6.png
//  = / ,  (9 .)

[IMG]
vers2/7.png
  (6 .) =   (16 .)

[IMG]
vers2/8.png
 (4 .) = 

[IMG]
vers2/9.png
 +  (4 .) = 