3. Addition
4. Subtraction
7. Division
10. Patterns
11. Rounding Numbers
12. Fractions
12.4. Division as Fraction
12.5. Fraction as Division
12.7. Equivalent Fractions
12.8. Comparison of Fractions
12.10. Unit Fraction
12.13. Word Problems on Fractions
13. Decimals
14. Money
15. Measurement
16. Unitary Method
17. Geometry
20. Symmetry
21. Time
22. Data Handling