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This rich task is beautifully motivated through a series of conjectures and counterexamples, related to the strange “palindromification” of numbers. Take a number (i.e. 25), and add its reverse (52). Is the sum always a palindrome (77), that is, a number that reads the same forward as backward?
The video below explains how to use Number Palindromes to best effect in the classroom. See the PDF Lesson Plan for more.