Students put all of their addition and subtraction skills together to solve equations. In this lesson, students put all of their addition and subtraction skills together to solve equations. Julia ...

Count back & use the relationship between addition and subtraction to subtract within 20. Warm up with a Mystery Math Mistake to find the error in DC's addition. Use ...

Robust skill-building and reinforcement of key mathematical concepts lie beneath the excitement of these games.

Microsoft Excel is a powerful spreadsheet program that can be used for a variety of tasks, including basic math. Here's how ...

Seems like budget cuts, staffing cuts and revenue cuts are all the rage these days. Perhaps more than ever, you and your team will be required to do more with less — much less of everything. At some ...

Twenty-four first-grade children were asked to write number sentences and select appropriate alternative number sentences for addition and subtraction word problems. Responses were qualitatively ...

Jackson Ryan was CNET's science editor, and a multiple award-winning one at that. Earlier, he'd been a scientist, but he realized he wasn't very happy sitting at a lab bench all day. Science writing, ...

Time to test your brain! Are you a puzzle person? Most of these hard math problems aren’t straightforward arithmetic. They challenge you to look at problems a different way, testing your logic and ...