Most of the math courses I teach have more than adequate test generators which I use to create my quizzes, chapter reviews and the chapter tests. I can even make the review assignment multiple choice and the exam a "show the work" test. The program follows one of the concepts explained in this module - leaving a space to the right of the problem to provide your answer, which makes grading the exam a lot easier. One aspect of this test generator I started using this year was to make multiple versions of the same review/quiz/exam. They're the same type of question, but using different numbers. I have four versions I have created - one for each term. Once the new year rolls around, I have all the answer keys for the year, and don't have to worry if someone repeats the course, since the tests won't be the same.