* Includes, as applicable, equity in losses or income from investments,  
  write-down of investments, gains or losses on sale of investments and     
  gains or losses on non-qualified deferred compensation plan assets        
  recorded in Other income (expense), net.                                  
                                                                            
                                                                            
                        Cadence Design Systems, Inc.                        
                                (Unaudited)                                 
                                                                            
Revenue Mix by Geography (% of Total Revenue)                               
                                                                            
                                           2011                    2012     
                            ---------------------------------  ------------ 
GEOGRAPHY                     Q1     Q2     Q3     Q4    Year    Q1     Q2  
                            -----  -----  -----  -----  -----  -----  ----- 
                                                                            
 Americas                      44%    47%    44%    44%    45%    44%    46%
 Europe, Middle East and                                                    
  Africa                       21%    20%    21%    20%    20%    19%    20%
 Japan                         19%    17%    18%    17%    18%    18%    16%
 Asia                          16%    16%    17%    19%    17%    19%    18%
Total                         100%   100%   100%   100%   100%   100%   100%
                                                                            
Revenue Mix by Product Group (% of Total Revenue)                           
                                                                            
                                           2011                    2012     
                            ---------------------------------  ------------ 
PRODUCT GROUP                 Q1     Q2          Q3          Q4        Year        Q1          Q2    
                                                        -----    -----    -----    -----    -----    -----    -----  
                                                                                                                                                        
  Functional  Verification                                                                                                        
    and  Design  IP                                28%        33%        30%        32%        30%        30%        33%
  Digital  IC  Design                          24%        21%        22%        21%        22%        23%        22%
  Custom  IC  Design                            20%        22%        23%        23%        22%        23%        22%
  Design  for  Manufacturing              8%          6%          6%          6%          7%          7%          6%
  System  Interconnect                      10%          8%          9%          8%          9%          8%          8%
  Services  and  other                        10%        10%        10%        10%        10%          9%          9%
Total                                                  100%      100%      100%      100%      100%      100%      100%
                                                                                                                                                        
Note:  Product  Group  total  revenue  includes  Product  +  Maintenance