Find the difference of the greatest number of six digits and the smallest number of seven digits.
The greatest number of six digits:999999
The smallest number of seven digits:1000000
Their difference: 1000000-999999
Hence the difference is 1.
Question 164
Find the difference between the largest number of seven digits and the smallest number of eight digits.
Find the difference between the smallest number of six-digits and the greatest number of five-digits.