3. Addition
4. Subtraction
7. Division
10. Patterns
11. Rounding Numbers
12. Fractions
13. Decimals
14. Money
15. Measurement
15.1. Measurement of Length
15.2. Measurement of Weight
15.2.2.1. Addition of Weights
15.2.2.2. Subtraction of Weights
15.2.2.2.1. Subtraction of Weights in Grams and Milligrams
15.2.2.2.2. Subtraction of Weights in Kilograms and Grams
15.2.3. Word Problems on Weights
15.3. Measurement of Capacity
16. Unitary Method
17. Geometry
20. Symmetry
21. Time
22. Data Handling