3.4. HCF and LCM
3.4.1. HCF (Highest Common Factor)
3.4.2. LCM (Lowest Common Multiple)
3.4.3. Properties of LCM and HCF
3.4.4. Word problems on HCF and LCM
6. Integers
7. Fractions
8. Decimals
10. Mensuration
11. Algebra
13. Symmetry