How many numbers are there between 1000 and 9999?
How many numbers are there from 1000 to 9999?
 

Dear student,

Numbers that lie between 1000 and 9999 are 8998.
9999-1000=8999 including 9999.
So subtract 1 from 8999, therefore 8998 numbers are between 1000 and 9999.
 
And numbers from 1000 to 9999=9999-1000=8999

Regards