Library / /3 of 356

, 2011

Number theory Difficulty 1.0 Junior Find the answer Canada

A palindrome is a positive integer that is the same when read forwards or backwards. For example, $545$ and $1331$ are both palindromes. The difference between the smallest three-digit palindrome and the largest three-digit palindrome is

(A) $909$ (B) $898$ (C) $888$ (D) $979$ (E) $878$

Want a route through all this instead of an archive? The track puts 2,604 problems in a working order, from Junior Challenge level to the IMO shortlist.

Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.