Cupcake Math Pizza & Real Life Math

We did Cupcake Math. We counted all the cupcakes and then subtracted from the cupcakes. So we counted how much cupcakes were left. We also discussed fractions or equal parts of a whole with a Pizza. We have counted the pizza slices. Then seen that all of it make a Whole Pizza. So we eat a fraction of the pizza.  What is needed to do these activities : Pizza & Cupcakes