Find the difference between the smallest n digit number and the greatest m digit number. (Assume n > m).
Answer:
10n-1 - (10m-1)
- Let us find the smallest n digit number first.
We know that the smallest 1 digit number is 1.
Or, we can say that the smallest 1 digit number = 101-1 = 1
Thus, the smallest n digit number = 10n-1 - Similarly, the greatest m digit number = 10m-1
- Thus, the difference between the smallest n digit number and the greatest m digit number is 10n-1 - (10m-1).