2. Arithematic
2.1. Numbers
2.3. Fractions
2.5. Decimals
2.6. Unitary Method
2.6.1. Problems on Direct Variation
2.7. Rounding Numbers
2.8. Percentage
2.9. Profit and Loss
2.10. Simple Interest
2.12. Mensuration
2.13. Time
2.14. Data Interpretation