- Introduction to Decimal System and Base
- Problem-Introduction to Decimal System and Base
- Introducing Base 2 System
- Problem-Introducing Base 2 System
- Base Five Number System
- Problem-Introduction to Base Five System
- Base Eight Number System

- Introducing Base 2 System
- Conversion of Number from Base 10 to 5 System and Vise Versa
- Problem-Conversion of Number from Base 10 to 5 System
- Conversion of Number from Base 10 to 8 System and Vise Versa
- Basic Operations in Base-2 System
- Problem-Basic Operations in Base-2 System
- Addition and Subtraction in Base-5
- Problem-Addition and Subtraction in Base-5
- Multiplication in Base-5 System
- Problem-Multiplication in Base-5 System
- Addition of Numbers in Base Eight System
- Subtraction of Numbers in Base Eight System
- Multiplication of Numbers in Base Eight System
- Addition of Numbers in Different Base System
- Subtraction of Numbers in Different Base System
- Multiplication of Numbers in Different Base System
- BODMAS Rule in Solving Numbers with Different Base System