2. Integers
3. Fractions
5. Decimals
8. Percentage
10. Simple Interest
11. Exponents
14. Mensuration
15. Geometry
16.1. Linear Symmetry
16.2. Rotational Symmetry
16.2.1. Rotational Symmetry in Figures
16.2.3. Rotational Symmetry in Alphabets
18. Probability
19. Data Handling
S Korea