What is the difference between the largest and the smallest possible distinct 4-digit number that you can make from four digits 0, 4, 2 and 3?

From 4 letters ab18 one can make all 18 numbers with 4 digits. (In a number, each digit is written only once.) The sum of all 18 possible numbers is 90216. Find a and b.

using each of a digit 3,4,5 and 6 exactly once to form two 2 digit numbers .what is the different between the largest possible product and the smallest possible product of two such number

hơ many diferent 3- digit whole numbers can be formed using the digit 4,5 ,0 and 8 assuming that no digit can be repeated in a number ? ai nhanh tick

hơ many diferent 3- digit whole numbers can be formed using the digit 4,5 ,0 and 8 assuming that no digit can be repeated in a number ? ai nhanh tick

Find the sum of the greatest 3-digit number and the smallest 2-digit number.
Answer: The sum is 

in a 4-digit number, the ones digit is the possible largest number, the hundreds digit is the smallest odd number and the tens digit is 1 more than the hundreds digit. The thousands digit is the sum of the hundreds and the tens digit. Find the number

The sum of 2018 and a 3-digit number is a square number. Find the smallest possible value of the 3- digit numbers

How many different 3-digit whole numbers can be formed using the digits 4, 5, 0 and 8, assuming that no digit can be repeated in a number?