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

3 items are filed under this topic.    Page1/1            The last two digits of a phone number 2016-04-03 From Joshua:I want to find the last two digits of a phone number whose first eight numbers of a ten digit phone numbers are known.Answered by Penny Nom.     The last two digits 2006-07-22 From Sam:You have answered this question already but you only answered to one digit. What are the last TWO digits of: 3 to the power of 1994 7 to the power of 1994 3 to the power of 1994 + 7 to the power of 1994 7 to the power of 1994 - 3 to the power of 1994 Answered by Paul Betts and Penny Nom.     A palindrome question 2004-09-28 From Lilly:12, 21, 13, and 31 are the only double-digit numbers whose squares are the palindromes of the squares of the palindromes of double-digit numbers. I was wondering why it works for these numbers, and if only these numbers work this way.Answered by Chris Fisher and Penny Nom.      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