Mrs. Post and her daughter, Hallie, teach us a great way to look at multiplication: by adding groups of numbers. Rise and Shine is available to stream on pbs.org and the free PBS App, available on ...

Join Ms. Askew for a subtraction number talk with Springling! Get ready to learn how you can quickly multiply and divide by relating multiplication and division. Math Mights is available to stream on ...

This summer, battle lines were drawn over a simple math problem: 8 ÷ 2(2 + 2) = ? If you divide 8 by 2 first, you get 16, but if you multiply 2 by (2 + 2) first, you get 1. So, which answer is right?

Most people know just one way to multiply two large numbers by hand. Typically, they learned it in elementary school. They’re often surprised to find that there are a variety of ways to do ...