Simple question: how to paginate, especially if starting page number one on the fourth page.

Humorously, when I was a boy my Mom used to say I had a mouse in my pocket. When she would say "We need to cut the grass" or "We need to clean up your room", I would ask, "Mom, who is we? It's just me doing the work", she would reply with a grin, you and that mouse in your pocket. "We" brings back fond memories of my Mom.