SOLUTION: x is a 3 digit number y is the digits of x reversed, also a 3 digit number. what is the smallest positive value of the absolute value of y-x?

Question 541031: x is a 3 digit number
y is the digits of x reversed, also a 3 digit number.
what is the smallest positive value of the absolute value of y-x?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Neither the 1st or the 3rd digit can be
The smallest they can be is
The smallest the 2nd digit can be is

Since is neither positive or negative
the 3rd digit has to be

The 2nd digit can be any value and
is still
which is smallest absolute value
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