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