Week+2

**Welcome to Week 2:**
I'll be adding content as we go through the week. For tomorrow, I only want to add one topic that's not a part of the curriculum. It's something that's not often taught in school these days but is very helpful for checking your work. It's called "Casting Out Nines."

Here's a short screencast I made to explain how to use it: Casting out nines.

And here are a few websites worth visiting for more information on this handy technique. [] [] [] [] []

Keep checking back. We have a lot of week to go.