Question

how many 6digit numbers are there in all.

Answer 1

Hi ,

Least 6 digit number = a = 100000 ,

Heighest 6 digit number= b = 999999

Now ,

Number of 6 digit numbers

= b - a + 1

= 999999 - 100000 + 1

= 900000

I hope this helps you.

: )