The sum of numbers formed by taking all the digits `2,4,6,8` is

The sum of all the numbers formed by taking all the digits from 2, 3, 4, 5 is

Find the difference between the greatest and the smallest four-digit numbers formed by using all the digits 8, 6, 7 and 4.

The sum of all the numbers that can be formed by taking all digits 2,3,4,4,5 only is

The sum of all the numbers that can be formed by taking all digits 2,3,4,4,5 only is

The total number of 5 digit numbers formed using the digits 2, 4, 6, 7, 8 if the digits are no repeated is

Write the greatest and smallest six digit numbers formed by all the digits 6,4,0,8,7,9, and find sum and difference of those numbers.