Sign in with the account you use for SkyDrive, Xbox LIVE, Outlook.com, or other Microsoft services.
Sign in with the account provided by your work or school to use with Office 365 or other Microsoft services.
Do one of the following:
Add line numbers to an entire document
Add line numbers to a selection of text
Microsoft Word will add page breaks (page break: The point at which one page ends and another begins. Microsoft Word inserts an "automatic" (or soft) page break for you, or you can force a page break at a specific location by inserting a "manual" (or hard) page break.) before and after the numbered lines.
Add line numbers to a section
Note To see the line numbers, switch to print layout view (Print Layout view: A view of a document or other object as it will appear when you print it. For example, items such as headers, footnotes, columns, and text boxes appear in their actual positions.).