I wonder where it came from, Where the first idea began. To help this man called Arithmetic Find his ex. When did this woman called Expressions become so complex? What ever happened to simple, And who is Domain? I know a boy named Graph, But I need to spend understand him better. What of Range? He seems a bit simpler. Hold on, now we're irrational? Now there's an Imaginary? I wish I could go back to the simpler times where Addition would hold my hand, And Subtraction was a bit of a bully, But only because he was misunderstood.