Deep down, Zero knows he's a hero—but he just can't seem to fit in with the other numbers in town. After all, Zero's not a counting number like a 3 or a 5 or a 9. He's virtually invisible when it comes to addition and simply zilch when it's subtraction time. The other numbers flee when Zero discovers multiplication—he has the power to turn them into nothing at all! When it's time to play th…