Math CentralQuandaries & Queries


Question from Avneetpal:

Difference of the smallest and biggest 4-digit number

Hi Avneetpal,

Suppose you start counting 1, 2, ..., 9, 10,...

What is the first 4 digit integer in your list? Since you are listing the integers in order this is the smallest 4 digit integer.

What is the largest 4 digit integer in your list?

What is the difference between these two numbers?


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