Even Smaller
  • 986420 - 1357

    In the above expression, each digit (0-9) is used once and only once. The difference between the above numbers is 985063. What is the minimum positive difference that can be determined from two whole numbers using each digit once and only once between the two numbers? (In other words, only ten digits can be used for the entire expression).

Answer:    
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(ex. 1000 or 2.033) and click GO.
   

Contest problems and answers provided by:

David Rock
rock_david@colstate.edu
Columbus State University

Doug Brumbaugh
brumbad@pegasus.cc.ucf.edu
University of Central Florida