11.6 It's Pizza Time (Student's page)

It's lunch time and your friends are hungry. So you decide to share an extra large pizza. But after looking at the menu above, you start to think that maybe you can get more for your money if you order three medium pies instead for the same price.

So what is it? One extra large pie, three medium pies, or do you think it doesn't matter because you are going to get the same amount of pizza either way? Please explain your reasoning.

Teacher page - coming soon!