Question

How mary 6 digit number are there is all?​

Answer 1

==> There are 999999–100000+1=900000 6 digit numbers .

Answer 2

$<p style ="Color:cyan; font-family: cursive; background:black;font size25px;"> 999,999 is the total number of numbers from 1 to 999,999. Now, you just want the number of 6 digit numbers. Let's take the highest 5 digit number which is 99,999. 99,999 is the number of numbers from 1 to 999,999 which aren't a 6 digit number.$