Click the Pages tab (1) and then the Add page button (2).
There 6 types of page available:
When you have selected a page, enter name in the Page title field (7) and click the Add Page button (8)
Your new page will be added to page list (1). Click on the page to open it.
Click on the page you want to remove (1) and after the page has loaded click thepage settings icon (2)
Scroll to the bottom of the page settings panel
Click the Delete this page button (2). If the button is disabled, it may be because you are trying to delete the home page.