You choose the fruit that has a prime/composite number, depending on what it says on the screen.  You should choose the numbers 0-99 for the best practice for you as a 5^th grader.  Either relaxed or timed mode is great practice.  HAVE FUN!

This link is a game that focuses on each step of the division process.  I would recommend choosing medium to begin with then move to hard and superbrain in order to get the kind of practice that a 5^th grader needs.

This site is a useful tool for review or for venturing out and learning a new concept on your own.