2. Integers

3. Fractions

4. Decimals

7. Percentage

10. Exponents

13. Mensuration

14. Geometry

14.1. Lines and Angles

14.1.1. Types of Angles

14.1.1.1. Complementary and Supplementary Angles

14.1.1.2. Linear Pair of Angles

14.1.1.3. Vertically Opposite Angles

14.1.1.4. Angles Around a Point

14.2. Triangles

14.3. Congruence

17. Probability

18. Data Handling