Question

Find the difference between the greatest and the least number that can be written using the digits $6,2,7,4,3$ each only once.

Answer 1

Compute the required difference:

Here in the given digits $7$ is the greatest one digit.

Arrange the digits from greatest to least, that is, $76432$.

Similarly, here in the given digits $2$ is the least one.

Arrange the digits from least to greatest, that is, $23467$.

That is the difference between the greatest and least number is

= $76432$-$23467$

=$52965$

Hence, the required difference is $52965$.