This joke activity will help students to practice their operations with functions. Skills include:•Adding, subtracting, multiplying & dividing functions.•With dividing functions, the functions cannot be simplified.•Composition of functions•Word problems involving functions and operations with functions.Both (f+g)(x) and f(x)+g(x) notation is used to remind students the problem means the same thing both ways.As students finish a problem, they will mark off the letter that goes with their answ