2. Integers
5. HCF and LCM
6. Fractions
6.1. Revisiting Basics
6.2. Equivalent Fractions
6.3. Comparing Fractions
6.4.1. Addition of Fractions
6.4.2. Subtraction of Fractions
6.4.4. Multiplication of Fractions
6.4.4.2. Use of 'OF'
6.4.5. Division of Fractions
6.4.7. Word Problems on Fractions
8. Decimals
9. Estimation
10. Number Pattern
12. Unitary Method
13. Percentage
14. Profit and Loss
15. Simple Interest
16. Exponents
19. Mensuration
21. Geometry
24. Probability
25. Data Handling
S Korea