You can put this solution on YOUR website! In everyday language, we nearly always use "difference" to mean how far apart two numbers are, without regard to which one is larger; so the difference is always a positive number (or maybe zero). If I have $10 and you have $7, the difference between what I have and what you have is $3. If I have the $7 and you have the $10, then the difference between what I have and what you have is still $3.
So with the way "difference" is used in everyday language, the difference between two numbers x and y is
But in nearly all applications in mathematics, the "difference between two numbers x and y" is
which means the difference can be negative. The difference between 10 and 7 is
But in most contexts in mathematics, the difference between 7 and 10 is
So you need to be aware of the context in which the term "difference" is used.
