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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).
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
David Rock rock_david@colstate.edu Columbus State University
Doug Brumbaugh brumbad@pegasus.cc.ucf.edu University of Central Florida