3. Addition 
 4. Subtraction 
 7. Division 
 9. Patterns 
 10. Rounding Numbers 
 11. Fractions 
 12. Decimals 
 13. Money 
 14. Measurement 
 14.1. Measurement of Length 
 14.2. Measurement of Weight 
 14.2.2.1. Addition of Weights 
 14.2.2.1.1. Addition of Weights in Grams and Milligrams 
 14.2.2.1.2. Addition of Weights in Kilograms and Grams 
 14.2.2.2. Subtraction of Weights 
 14.2.3. Word Problems on Weights 
 14.3. Measurement of Capacity 
 15. Unitary Method 
 16. Geometry 
 19. Symmetry 
 20. Time 
 21. Data Handling 
 Global
 Global