Ruby and Bonnie learn to be respectful to the teacher at school

we've got two minutes to do your sons good morning class today I'm your substitute teacher on it's time to take the register Ruby let's get ready to do your sums four plus three equals two minus one equals five add four equals three three take away zero equals six plus two equals four minus one equals you've got two minutes to do your sons [Applause] I'll be telling granny about this okay class can you bring up your ...