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The Middle Palindrome

Pro Problems > Math > Number and Quantity > Number Theory > Digits
 

The Middle Palindrome

If all the palindromes between 100 and 1000 were listed in order from smallest to largest, what is the average of the two numbers in the middle of the list?

NOTE: A palidrome is a number which reads the same forward and backward. For example, if you reverse the digits of 97279, you still have 97279.

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Problem by Mr. Twitchell

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