Fast Add

Tuesday, August 3, 2010 | comments

Friends

                    Yes, You can use Add function quickly with using calculator or computer.  For example you want to add  1 to 100 or  1 to 200 etc.   There is no need to add like this 1+2+3+4+5+6+7+ .... ????.   There is shortest way to calculate this type of calculations.  Formula is as under :-

N x (N+1)
---------
2
Example :-  Add  1 to 300 = ??

                  N will be 300 in above example.  
                  Result   =  300 x (300+1)           300 x 301         
                                   --------------    =    ------------ =  150 x 301 =      45150      
                                          2                               2                                     
Second Example : -     Add  1 to 10  = ??
                  N = 10
                  (10 x 11)/2 = 55

 To know regarding Fast Calculations click on Title/Subject of this post.  
                       

   
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