TERRIFIC Place-Value, Rounding, and Adding-and-Subtracting Decimals Smartboard-Slides-Lesson that teaches this concept simply, and provides great practice for students. Step by Step charts and easily understandable. Your students will truly enjoy this lesson and learn a lot! This is a resource you'll LOVE and use year after year! WARNING: You MUST have SMART Technologies SMART software, and a SMARTBOARD to teach from, to effectively download, open and use this Interactive Smartboard Lesson. Go t