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• response to this attempt

  Prince Gabriel

  Thu, 11 Oct 2012 22:55:35 GMT

  like 100

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  Prince Gabriel

  Thu, 11 Oct 2012 22:55:18 GMT

  i can go faster

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  Dr. Amit Garg

  Wed, 21 Mar 2012 17:33:18 GMT

  This record is a record of mental calculation ability. One beats the record if they can complete one attempt with all 10 correct tasks of dividing in less than 5 minute 45 seconds (or 345 seconds)

  Rules:

  1. Intermediate results should not be written and devices like calculator can not be used.

  2. They can download this program to generate set of 10 tasks of dividing 10 digit number by 5 digit number as set by "Memory and Mental Calculation Records" website.

  http://www.recordholders.org/downloads/division.xls

  Each attempt consist of 10 tasks.

  1. Number of Attempts: No more than 10 attempts within a period of 24 hours. When program is run, it generate 10 tasks for each of the 10 attempts and also the solution file seperately. One of the witness can print the problem set and give to record breaker one set when attempt begins. Witnesses verify the solution after each attempt.

  2. Timekeeping: The timing begins when the task becomes visible to the competitor and ends at the end of writing/dictating the answer. Correcting the answer while typing is allowed

  3. Two witnesses must confirm the record, at least one of them should have a professional background in mathematics/calculating.

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  Dan Rollman

  Mon, 19 Mar 2012 15:55:53 GMT

  Amit, really interesting record. Can you explain a little further how it worked? What would people have to do if they want to try and beat your time?

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