3. Addition 
 4. Subtraction 
 6. Division 
 7. Fractions 
 8. Measurement 
 8.2.1. Metric Units of Weight 
 8.2.4.1. Addition of Weights 
 8.2.4.2. Subtraction of Weight 
 8.2.4.2.1. Subtraction of Weight in Kilogram or Gram 
 8.2.4.2.2. Subtraction of Weight in Kilogram and Gram 
 8.2.5. Word Problems on Weights 
 9. Time 
 10. Geometry 
 11. Symmetry 
 12. Data Handling 
 Global
 Global