Thinking and Linking by Joanne Jacobs
Still funny after all these years …
Here’s the thing: the new math way he explained* was the way I was taught subtraction back in the ’80s, and I completely understood it. Other than mental math, I didn’t thing there was any other way to do it.
*Borrowing a ten for the ones column and carrying it over then borrowing a hundred for the tens column and carrying it over.
“Still funny after all these years …”
Yes…yes it is!
Too bad; that video is missing the (better) half – where he explains how to do the problem in BASE EIGHT!
Return to top of page
Copyright © 2016 · Genesis Framework · WordPress · Log in