How do I start page numbers after the front matter?

In Word

Word numbers a document straight through unless you split it into sections. The split goes between the last page of front matter and Chapter One.

1. Click at the very start of Chapter One. On the Layout tab choose Breaks, then Next Page under Section Breaks. Delete any manual page break that was already there, or you will get a blank page.
2. Double-click the footer (or header) on Chapter One's first page. On the Header & Footer tab, turn off Link to Previous. This is the step people miss: until it is off, whatever you do to one section happens to both.
3. With the cursor still in that footer, choose Page Number, then Format Page Numbers, and set Start at to 1.
4. Go back to a front-matter footer and delete its page number. Prefer lowercase roman numerals there? Keep the number and choose the roman format in the same box.

Chapter openings in printed books usually carry no header and often no number. Word's Different First Page checkbox handles that, but it applies to the first page of a section, so it only helps chapters that each begin with a section break. Mac Word has the same controls; a few labels sit in slightly different places.

In Google Docs

Choose Insert › Page elements › Page number, then More options. Unticking Show on first page hides a title page, and Start at changes the opening number. For more than one unnumbered page, put a section break before Chapter One (Insert › Break › Section break (next page)). Then open the same dialog from inside that section and choose it under Apply to. None of this works in pageless format, which has no headers, footers, or page numbers.

What print services expect

There is no single required scheme. Trade books commonly leave front matter unnumbered, or use roman numerals, and start arabic numbering at the first chapter. Check your print service's own guidelines before settling it, since they are the ones who will review the file.

In Tabularia

There are no sections to manage. A title page, a copyright page, and a dedication are matter pages. Matter is never numbered. The body opens at page 1 however many of those pages precede it. Each Book in a series numbers its own pages from 1. Under Project Settings › Headers & Margins, the body's numbering is set to arabic, roman, or none. The header and footer each have a switch for showing it.

Two limits. Front matter cannot carry its own roman sequence; it is simply unnumbered. And the numbering belongs to the designed page, print, and PDF: a DOCX export carries the text and its heading styles but no running footer, so page numbers for a Word submission are added in Word.