3. Addition
4. Subtraction
7. Division
10. Patterns
11. Rounding Numbers
12. Fractions
13. Decimals
14. Money
14.1. Introduction to Currency
14.3. Express Money in Figures
14.4. Conversion of Money
14.7. Word Problems on Money
15. Measurement
16. Unitary Method
17. Geometry
20. Symmetry
21. Time
22. Data Handling