  Math Central - mathcentral.uregina.ca  Quandaries & Queries    Q & Q    Topic: two-digit number   start over

3 items are filed under this topic.    Page1/1            The sum of the digits of two-digit number is 9 2008-07-01 From Audrey:the sum of the digits of two-digit number is 9. if the digits are reversed, the new number if 63 greater than the original number. find the number.Answered by Penny Nom.     A two-digit number is five times its units digit. 2007-02-21 From Pamela:A two-digit number is five times its units digit. If the digits are reversed, the resulting number is 27 more than the original number. Find the original number.Answered by Gabriel Potter and Penny Nom.     Four two-digit numbers 2006-12-02 From Mary:I have four two-digit numbers written on my paper. The sum of these 4 numbers is less than 100. True or False - each number is less than 25 If all the numbers on my paper are different, what is the largest (two-digit) number I could possibly have written.Answered by Stephen La Rocque.      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