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Three Digit Addition with Carry 

 255        365         675          516        388       689      249 
 +45        +35         +55          +15        +75       +74      +29
-----     ------      -----        -----       ----      ----     ----

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 788       977         848          251        665       485      495 
 +35       +45         +35          +50        +35       +55      +90
-----    ------      -----        -----       ----      ----     ----

-----    ------      -----        -----       -----     ----     ----




 334        295          476           677         758        969       
+ 15       + 25         + 15          + 65        + 25       + 35    
-----      ------      ------        ------       -----      -----  

-----      ------      ------        ------       -----     ------  




 991        899          793           694         565        346        
+ 45       + 95         + 65          + 85        + 55       + 45      
-----      ------      -----          -----       -----       ----     


-----      ------      -----          -----       -----       ----    
 



 248        549          750           860         970        180     
+ 75       + 45         + 75          + 45        + 35       + 65     
-----    ------          -----        -----       ------     ------     


-----    ------          -----        -----       -----      ------   





 355        352          353           354         355        356       357 
+ 45       + 65         + 45          + 85        + 45       + 95      + 35
-----    ------         -----        -----       -------    -------   ------

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