The previous book, 10 Powerful Steps to Multiplication Fluency, explained that multiplication fluency matters because: 1. multiplication is the doorway to algebra, and in turn, 2. algebra is the doorway to higher level math, the sciences, and college and career readiness. Furthermore, the previous book explained that a wide spectrum of skills, including fractions and decimals, are all needed for algebra and that all these skills depend on multiplication. Multiplication unlocks the door to mathematical understanding. If multiplication unlocks to the door to these essential concepts, then division opens that door even wider. In this book, not only will students learn about division (the inverse of multiplication), but they will also learn how an understanding of division leads to an understanding of concepts such as fractions and decimals. Making Sense of Division builds both fluency and conceptual understanding of division, giving students the confidence and skills they need to take learning to the next level.