This is a simple tutorial which provides a MathQuiz.
You can visit at the source page at Microsoft and checking out the full tutorial. There are some others too.
This program has as objectve provide countdown test to challenge the user on four math asks.
The program asks addition, subtraction, multiplication and dividion questions. While you are try to answer each one, a countdown runs and count 30 sec. At the end, there are two possibilities: 1- You got all answers right / 2- The time end up and you loose.