Ok...Blogger is making me cranky!! Hopefully this post will publish, and everyone can view it!! This activity focuses on adding and subtracting 10's using the hundred's chart. In Everyday Math, they emphasize using the hundred's chart by moving up and down a column on the chart as a shortcut to count by 10's. Does that even make sense? The heat has zapped all my brain cells!! Hopefully, it will be more clear when you view it. Have a wonderful weekend and stay cool!!
Plus Ten Minus 10
Here is a link to Google Docs if that works better for you.