DIVISIBILITY ONLINE PRACTICE

Divisibility Practice (review the rules first if you need to)

http://www.mathslice.com/ol_dvsbl.php

Divisibility Rules Game – Timed! (Practice so you can be an expert and get 25 points in 60 seconds) 

http://www.basic-mathematics.com/divisibility-rules-game.html

Vector Kids - Divisibility Rules Practice
http://www.vectorkids.com/vkdivisible.htm