Question

What is the difference between the smallest six digit whole number and the greatest 4 digit whole number

Answer 1

Solutions 

We know that the smallest 6 digit whole number : 100,000

The largest 4 digit whole number : 9,999 

To get the difference we have to subtract 

$100,000 - 9,999 = 90,001$ 

Answer 2

Smallest 6 digit whole number : 100,000
largest 4 digit whole number : 9,999

100,000 - 9,999 = 90,001