Click the green flag to start. Click the "New Game" button to start a new game. Follow the directions that the Math Wizard sprite says. Once you do what he says, click okay. Keep on following his directions, until he asks you if you got the same answer he did.
I made this project using the "Learn to Program with Scratch" book. I first downloaded the file "Ch 9 Math Wizard NoCode.sb2." I then followed the book to make three scripts, one for each sprite.