3. Addition 
 4. Subtraction 
 6. Division 
 7. Fractions 
 8. Measurement 
 8.1.1. Metric Units of Length 
 8.1.2. Measure Using a Ruler 
 8.1.4.1. Addition of Lengths 
 8.1.4.2. Subtraction of Lengths 
 8.1.5. Word Problems on Lengths 
 9. Time 
 10. Geometry 
 11. Symmetry 
 12. Data Handling 
 Global
 Global