If the number is being used in a situation that involves an amount of something such as money, it will be spoken as two hundred (and) fifty.
If the number is being used while counting out a sum of money, e.g., starting with a one-hundred-dollar bill and going up, it can be spoken as two hundred (and) fifty, but it can also be spoken as two fifty: "One hundred, one fifty, two hundred, two fifty,.." etc.
If the number is being used to identify a page in a book, it can be spoken as two hundred (and) fifty or two fifty.
If the number is being used to identify things like a room or airline flight number, it will be spoken as two fifty.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .