In order to add a new page it is possible for you to follow more than one way.
It is possible to click the button present between the page functions in the administrator tools bar.
 

 

Or:
Click the Pages button in the administrator drop down list, which will appear after making the login.
 

Click the “Add new page” speed link at the bottom left.
The following screen will appear:

In the Page Name field, enter the name for the pages as it will be read in the menu.
In the Page Title field, enter a short, descriptive sentence (not more than 200 letters), which summarizes the page content. The title is used by the search engines to identify the information contained in the page.
In the Description field, enter a description of the page content. The description is used by the search engines to identify the information contained in the page. We suggest you that  the description contains at least 5 words, and that it does not exceed the 1000 letters.
At Key Words, enter the keywords. The page will appear between the search engines results according to the entered words, if you want to proceed to the subscription to them.
At Parent Page, select < None Specified > in order that the new page to the menu bar, or select a menu page in order to do that the new page appears as sub–page of the selected one.
At Permissions, select the individuals who can view and edit the new page. If it is a sub–page, this will inherit its security settings from the home page which it is connected to.
Click Update.