The Great Pizza Party

Who doesn't love a pizza party? But wait, there's a problem—we have to make sure everyone gets enough slices, and we have to figure out how many toppings we need. Let's get cooking! Learn more!
Wee Ones
Imagine a pizza with 3 slices. Without counting them one by one, can you "see" the 3 in your mind? Now, if I add 1 more slice, how many are there? Count on from 3!
Little Kids
If you share a small pizza equally among 2 friends, what fraction of the pizza does each friend get? What if you share it among 4 friends?
Big Kids
A pizza place has two deals: 1 large pizza for $15, or 2 medium pizzas for $20. If 2 medium pizzas have the same amount of food as 1 large pizza, which deal is the better value for your money?
The Sky's the Limit
A pizza is cut into 8 equal slices. If you eat 3 slices, what percentage of the pizza have you eaten?