This might help you: Word Press Basics: Toolbar, Formatting, Page Creation & Menu Structure

When you log into your WordPress website click on pages. Once you have done that you should clock on "quick edit" on the pages you will like to order.

When you click on quick edit on you page that you will like to order. The drop down menu will open and on your right you would see parent, order, template, and status.

Where it says order there is a box where you can number what order you will like that page to be. 1, 2, 3, etc.

Put the order number you will like that page to be and click "Update"

Do that for each page you will like to order.

Cheers

You can change the order of your pages in the menu with custom menus: WordPress Dashboard Tutorial - Custom Menus Hope this helps!

Go to Appearance – Menus. On the right, you’ll see the Menu Structure. You can rearrange by dragging the pages up and down. Then hit Save Menu.