2. Addition
3. Subtraction
5. Division
6. Measurement
6.1.1. Identify - Long or Short
6.1.2. Units of Length
6.1.3. Measure Using a Ruler
6.1.4.1. Addition of Lengths
6.1.4.2. Subtraction of Lengths
6.1.4.2.1. Subtraction of Length in Meter or Centimeter
6.1.5. Word Problems
7. Geometry
8. Time
9. Patterns
10. Data Handling