Represent and solve problems involving multiplication and division. Interpret products of whole numbers, e.g., interpret 5 × 7 as the total number of objects in 5 groups of 7 objects each. For example, describe a context in which a total number of objects can be expressed as 5 × 7.

Why are there *12* months? Why don't weeks fit into months evenly? Why don't weeks fit into the year evenly? What's going on with the calendar!