I've produced a second mathcast, this one using Camtasia screen recorder. I've posted the mathcast on You Tube and you can watch it right here without leaving the blog. This video shows you how to quickly multiply together a pair of two digit numbers without having to write down the intermediate results.
This is the second in a series of videos I'll be producing on arithmetic tips and tricks.
The first mathcast was here. It was about very quick multiplication for special cases of numbers.
If you enjoy this video check out all of the Wild About Math! mathcasts.
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