Five-Digit Palindromic Numbers

A number is called palindromic if its digits can be read in reverse order, and the result will not change. For example, the number 4407667044 is a palindromic number, and so is 92329.
How many five-digit palindromic numbers are there in total?

Difficulty level (1 very easy - 10 very hard): 1

Arithmetic Combinatorics

Sources:

Young Mathematician Olympiad, 2020-2021, Stage A, Grades 3-4 Question 2

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