Question

Shayli is a good note taker. So far this school year, she has taken 326 pages of notes. If she wants to number all the pages in her notebook, how many digits will she need to write in total? thx for helping

Answer 1

`870` digits

Explanation:

`1-9` are the numbers with one digit each.
There are `9` numbers from `1-9`

Use a formula:
`"Number of digits" xx "number of numbers with the same amount of digits = total number of digits"`
`1 xx 9=9`

`10-99` are the numbers with two digits each.
There are `90` numbers from `10-99`.
`2 xx 90=180`

`100-326` are the numbers with three digits each.
There are `100` numbers from `100- 199` and from `200 -299`
There are `27` digits from `300 -326`

There are `227` numbers from `100-326.`
`3 xx 227=681`

`9+180+681=870`