Chapter 1: Basic Math include Adding and Subtracting Practice with One Variable. Simple Word Problems and lots of Words of Math
YouTube Chapter 1 Playlist: ​tinyurl.com/Chapter-1-Basic-Math

Chapter 2: Math That Needs Memorizing includes Orders of Operations, Properties, Exponents, Roots, Classification of Numbers. 
YouTube Chapter 2 Playlist: tinyurl.com/Chapter-2-PEMDAS

Chapter 3: Greatest Common Factor and Least Common Multiple plus a whole lot more.  
YouTube Chapter 3 Playlist: tinyurl.com/Chapter-3-GCF-LCM

Chapter 4: Using Decimals and Fractions to find Original Price after Discounts, Finding the Discount and practice back and forth on these concepts. 
YouTube Chapter 4 Playlist: tinyurl.com/Chapter-4-Discounts

Chapter 5: Standard and Metric Measurements of Weight and Length, Temperature in C and F, Conversions between Standard and Metric.
YouTube Chapter 5 Playlist: tinyurl.com/Chapter-5-Measurements

Chapter 6: Graphing, Probabilities, Mean, Median, Mode, Range
YouTube Chapter 6 Playlist: tinyurl.com/Chapter-6-Probabilities

Chapter 7: Geometry includes - Circles, Angles, Triangles, Parallelograms, Cylinders area, circumference, volume and much more. 
YouTube Video to Chapter 7 Playlist: tinyurl.com/Chapter-7-Geometry

Chapter 8: Algebra, Congratulations you are now prepared for Algebra.  This chapter includes: Graphing, X and Y intercepts, Slope, and Linear Equations. 
YouTube Link to Chapter 8 Playlist:  tinyurl.com/chapter-8-algebra