Melissa is painting the walls in study rooms at the library. She estimates that she will need 1/6 gallon of paint for each wall. How many walls can she paint with 6 gallons of paint?
There are a few ways to look at this. If you wanted to look at all the events, you could draw a 6 x 6 grid and label the left side from 1 to 6 and the bottom from 1 to 6. The intersection of a row and a column would be a possible sum.