Recent content by Daniel Martinez

  1. D

    Show That If Alt Sum of Digits Div By 11, n Is Divisible By 11

    Homework Statement Given a positive integer n written in decimal form, the alternating sum of the digits of n is obtained by starting with the right-most digit, subtracting the digit immediately to its left, adding the next digit to the left, subtracting the next digit and so forth. For...