Question 140367
The 1st and the last digits must be the same
since it must read the same forwards of backwards.
The 1st digit cannot be {{{0}}}, so the possibilities are:
1-1
2-2
3-3
4-4
5-5
6-6
7-7
8-8
9-9
Or, {{{9}}} possibilites
The 2nd digit can be 0-9, or {{{10}}} possibilities
There are {{{10}}} choices for a 2nd digit for each
of the {{{9}}} choices 1-1 through 9-9, so
there are {{{9*10 = 90}}} 3-digit palindromes