Given that
(1) x and y are both integers between 100 and 999, inclusive;
(2) y is the number formed by reversing the digits of x; and
(3) z=|x-y|.
How many distinct values of z are possible?
Given that
(1) x and y are both integers between 100 and 999, inclusive;
(2) y is the number formed by reversing the digits of x; and
(3) z=|x-y|.
How many distinct values of z are possible?