Math Central - mathcentral.uregina.ca Quandaries & Queries Q & Q Topic: decreasing numbers start over

One item is filed under this topic. Page1/1 Decreasing numbers 2011-04-13 From Hadi:A number is called a "decreasing number" if each digit in the number is less than the digit to its left. For example, 87420 is a deceasing number. How many five-digit decreasing numbers are there?Answered by Claude Tardif. Page1/1 Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences. about math central :: site map :: links :: notre site français
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