Imagine being in front of a sea of bored, teenage eyes that are begrudgingly sitting through a required math class on squared numbers. Then you start challenging them. “I bet you I can square any large number ending in 5 in less than 25 seconds… in my head. Go on, you tell me a number, …
If you’re anything like a majority of the world, you’ve never heard of visual math methods, let alone specific ones you can use as “short cuts” to make things easier. In this case, we are going to dive into the W-method of multiplication, it’s brief history, and how to use it. History of the W-Method …