- Problem-Concept of Factors
- Types of Natural Numbers
- More on Types of Natural Numbers
- Problem-Types of Natural Numbers
- Prime Numbers and Composite Numbers
- Properties of Prime Numbers
- Index Notation
- Problem-Index Notation
- Prime Factorisation
- Problem-Prime Factorization

- Introduction to Square Root of Positive Numbers
- Problem-Introduction to Square Root of Positive Numbers
- The Square Root of Numbers Which are Perfect Square
- Square Root of a Natural Number
- Problem-Finding Square Roots By Prime Factorization
- Concept of Cubes and Perfect Cubes
- Problem-Concept of Cubes and Perfect Cubes
- Cubes and Cube Roots
- Problem-Cube Roots of Numbers which are Perfect Cubes
- Proving Square Root of Prime Number is Irrational Number

- Least Common Multiple (LCM)
- Problem-Least Common Multiple ( LCM )
- Find LCM of Four Numbers Up to 2-Digits
- Problem-Find LCM of Four Numbers Up to 2-Digits
- LCM by Prime Factorization Method
- Problem-LCM by Prime Factorization Method
- LCM by Short Division Method
- Problem-LCM by Short Division Method
- Highest Common Factors ( HCF )
- Problem-Highest Common Factors ( HCF )
- Find HCF of Three Numbers, Up to 2-Digits
- Problem-Find HCF of Three Numbers, Up to 2-Digits
- Finding HCF By Prime Factorization Method
- Problem-Finding HCF By Prime Factorization Method
- Finding HCF By Using Division Method
- Problem-Finding HCF By Using Division Method
- Relation Between HCF and LCM of Two Numbers
- Problem-Relation Between HCF and LCM of Two Numbers
- Solve the Real Life Problems Involving HCF and LCM
- Problem-Solve the Real Life Problems Involving HCF and LCM