In this chapter students will learn how to work with Real Numbers and simplify variable expressions. Real Numbers are the positive and negative numbers that students are introduced to middle school and algebra. I can not stress how important it is for a student to master EVERYTHING in this chapter- so many student errors can be traced back to weakness in this topic. Students will be learning what the Real Number system is and the rules to add, subtract, multiply and divide Real Numbers. Moreover students will learn about “like terms” and how to work with variable expressions- super important stuff!