Seems like it's time to randomize questions. And technology could be used for this, too. It wouldn't be too hard to come up with something that changes a few

Seems like it's time to randomize questions. And technology could be used for this, too. It wouldn't be too hard to come up with something that changes a few key numbers in each question, and reorders all the questions. This could be used to automatically generate the answer key for the professor, too. Each student could be given a personalized assignment, that is useless to copy from anywhere else.