            
                       
                    2015.12     
     2015.12.21        
               
                  
                            
                          
                    
        
①        
②               

③      
④        
⑤           
⑥                 
⑦       
⑧             
⑨                             
⑩                  
                
 ⑴                      
 ⑵           10 20           
 ⑶                                 
 ⑷                          
                     
             
⑴                        
⑵                                   
⑶                      
⑷             
①                 
②                                         
③                            
           
             
             
             
             
             
             
             
       
            
       
             
⑸                                             
⑹                                                          
                   
⑺                              
⑻         ①   ②        
⑼                          
                                       
                                  
                               
⑽                        
⑾                
⑿                            
⒀                    
⒁                  
⒂     30  15          
              (   
      2015.12.22      
             
           
           
           
         
            
                                 
                                                       
                      
                                                        
             
           
                    
                          
                                    
                                                            
            
                            
⑴          
        ①   ②    ③        
           
          
          
            
             
          
          
             
           
 
     
              
                      
⑵                  
⑶                                 
⑷                           
⑸                           
           
                 
           
                
⑹             
                  
            
                                              
                  
               
⑴                                                                
               
⑵                      
⑶                    
⑷                    
⑸                                                   
⑹          
⑺            
⑻             
⑼                  
⑽                                 
              
                    
    2015.12.21      
      
                
                    
                   
        
                          
            
                  
      90     
        
            
       
⒈ 6  8               
⒉                  
⒊          ⑴   ⑵   
⒋       
                   
                        