ISBN Checkdigit Code

Discussion in 'Homework Help' started by darkman12, Mar 16, 2010.

  1. darkman12

    Thread Starter New Member

    Mar 10, 2010
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    The sixth digit in the ISBN 0-7923-519-X was blanked out. Find the missing digit.


    The answer is 7, however I am not sure how to arrive at this answer. Can someone please provide a step by step explaination on the method involved to solve the problem?

    Thanks
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
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  3. retched

    AAC Fanatic!

    Dec 5, 2009
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    Read up on MOD11.
     
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