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