can i use my Fuji xerox cm205fw printer

You can look this up yourself:

iOS: AirPrint 101

Fuji Xerox have an app on the App Store. I downloaded this and it worked for printing from Pages. No doubt it will also work for Numbers.

Steps:

1) install the F-X app on the iPad.

2) When it comes to print time, click on "share" when you want to print the document in whichever app you are using

3) Select "open in another app"

4) Select share as PDF format

5) when prompted by "Choose App" select the F-X app

6) under "printer name" do a Bonjour search

7) print!