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I am less than 25.

My ones digit is twice my tens digit.

My digits add up to an even number.

What am I?


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Palindromes

Find out about palindromic numbers by reading this article.

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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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