## Counting Nines

#### Problem

If you wrote all of the numbers from one to one-hundred on a piece of paper, 1, 2, 3, 4, ..., 99, 100. How many number nines would you write in total?

Problem ID: 100 (Feb 2003) Difficulty: 1 Star

If you wrote all of the numbers from one to one-hundred on a piece of paper, 1, 2, 3, 4, ..., 99, 100. How many number nines would you write in total?

Problem ID: 100 (Feb 2003) Difficulty: 1 Star