Johnny Carson docs a routine that is a take-off on the answer man. Instead of answering questions, however. Johnny is presented with an answer and he supplies a question having that answer. An analogous situation can be presented to youngsters. Let them play Johnny's part. the part of the question person. Suppo e that you orally give them, say, fifteen. This is the answer to a question that involves the addition of three different whole numbers. The students' task is to give the addition questions related to that sum.