5. Fractions
6. Decimals
8. Measurement
9. Average
10. Percentage
11. Time
12. Money
13. Geometry
13.2. Angles
13.2.1. Introduction to Angles
13.2.4. Types of an Angle
13.3. Types of Lines
13.4. Set Squares
13.6. Triangles
13.7. Circle
15. Volume
16. Data Handling