Double-Digit and Triple-Digit Addition With and Without Regrouping:All graphics by www.mycutegraphics.comActively engage your students in learning how to regroup with this colorful, interactive, educational, and easy to use STAR-themed SmartBoard Unit on Double-Digit and Triple-Digit Addition With and Without Regrouping. Aligned with the Common Core, PA State Standards, and PA Eligible Content, you can rest assured that essential skills are being addressed effectively. There are multiple slid