Description: Sal arranges digits to make the largest possible number. Created by Sal Khan. So the way I like to think about it is, if I'm trying to create as large of a number as possible, I want to put the largest numbers in the largest place value. So if it's a four-digit number whatever I put here, this is going to represent thousands. Well if I want as large a number as possible, I'm going to make it 6,000.*Teacher Advisor is 100% free.