Starting an auto-numbered paragraph is deceptively simple. See those buttons on the top row of the Paragraph section of the Home tab? The left-most one is for bullets; the next two to its right are for numbering and multi-level numbering, respectively. Simply click the button to toggle the feature on, or click on the drop-down arrow on each button to select a specific style. If you don’t like any of the delivered choices, you can click Define New to set your own.
The auto-indenting feature of bullets and lists has always frustrated me. EVERY time you apply a numbered or bulleted list, you've got to set the indents. I want my lists to be indented at the very left of the page, flush with the rest of the paragraphs. But no, Microsoft insists that you want them indented by 0.63cm and hanging at 1.27cm (WHY 0.63? Why not 0.7? Or 1.0cm? But that's a question for a different session.) (I know, it's because MS is American and still uses inches etc...)
Defined lists are often used to track paragraphs for numbering purposes. When you create a paragraph style for numbering, you can assign the style to a defined list, and paragraphs are numbered in that style according to where they appear in the defined list. The first paragraph to appear is given number 1 (“Table 1”), for example, and the next paragraph is given number 2 (“Table 2”), even if it appears several pages later. Because both paragraphs belong to the same defined list, they can be numbered consecutively no matter how far apart they are in the document or book.
And what all did I forget to do? I forgot to go to 'Styles', 'Paragraph Styles', and I went, right click 'Redefine' because I've reverted to what it was before. So that's page numbering, we used A, B, C, D at the beginning. And we're going to use 1, 2, 3, 4, 5 for the rest of it. The only trouble happens, is when you go 'File', 'Print' now, and you're like, "Hmm." "I want to print pages." and you're not too sure. So what I have to do is go to A, through to 30. So it will include A, B, C, D, E, and all the way through the numbers. What if I just need A, B, or if I just print 1-30? It's going to skip out these first pages. That's just something to be aware of when you're printing, or making PDFs, that the page numbering is a little bit stranger now that we've gone and messed around with the page numbering.

In this video we're going to look at starting your page numbering, not from 1, you can see, we started A, B, C, D, and 1 actually starts on page 5. That means we can have a Contents page, and a Cover that don't get included in the page number. That's going to help us with a couple of things, like our Contents page. Otherwise our first bit of text is going to start on page 5. That's not true, it's on 1. It's kind of true. Anyway, let's go and look at setting out our page numbers.
You can add a chapter number variable to your document. Like page numbers, chapter numbers can be updated automatically and formatted and styled as text. A chapter number variable is commonly used in documents that are part of a book. A document can have only one chapter number assigned to it; if you want to divide a single document into chapters, you can create sections instead.
Check the Restart Numbering After option, if you want sublevel numbers to start at 1. In most cases, you'll want to set the After option to the previous heading, as shown in Figure F. Doing so forces Word to start renumbering Heading 2 paragraphs after each new Heading 1 paragraph. In other words, when Heading 1 updates to 2, the sublevel number will start over at 1, generating 2.1, 2.2, 2.3, and so on.
See Word's Numbering Explained by John McGhie, MVP - comprehensive and not pretty (Downloadable pdf file in letter size) - Reading this is vital to anyone attempting to use automatic numbering or bullets in a law office setting or other places where the documents are likely to be reused or heavily edited. See also How to Create a Template with a downloadable template with style-based numbering.

In Japanese, Chinese, or Korean versions, by default, Arabic numerals are used for page numbers. However, if you use the Numbering & Section Options command, you can specify the style of numbering, such as Roman numerals, Arabic numerals, Kanji, and so on. The Style option allows you to select the number of digits in the page number, for example, 001 or 0001. Each part of the document that uses a different numbering style is called a section. For more information on sections, see Define section numbering.

Mike Rankin is the editor in chief of, InDesign Magazine, and Since 1995, Mike has enjoyed working in nearly every aspect of publishing production, including design, project management, layout, illustration, and prepress. He is a regular speaker at conferences like PePcon: The Print + ePublishing Conference and the InDesign Conference.
Warning  Making even minor changes to an outline numbering scheme won't necessarily change the initial position you've selected in the gallery, but rather may create a new gallery position, overwriting an existing one. Because of this problem, attaching numbering to styles is strongly recommended. This is covered in greater detail later in this chapter and in the chapter on Styles.
Notice that the Font option (when you applied italics) changes only the number, not the heading text. To update the heading text, modify the heading style as you normally would. Word assumes you want all Heading 1 and Heading 2 styles included in the new numbering scheme. If you want to omit a heading level from the scheme, don't use a built-in heading style to format those headings.
Some drawbacks to this feature are that you lose a little control when you are typing. Word formats for you and some users do not like this. Also, on certain items, you will get a number when you do not expect or need one. For example, you have an attorney whose name begins with an initial (A. George Smith). When you type the name and press ENTER, the first initial "A." converts to an automatic number.