Cambridge Mathematics IGCSE Extended Number

Cambridge Mathematics IGCSE Extended – Number

1.1 Directed Numbers
1.2 Number Skills
1.3 Sets
1.4 Venn Diagrams
1.5 Fractions
1.6 Decimals
1.7 Percentages
1.8 Time
1.9 Measurement
1.A Interest Rates
1.B Ratios
1.C Rates
1.D Growth and Decay

98 Lessons

About the course

This Cambridge Mathematics IGCSE Extended course on numbers will provide you with an extensive understanding of numbers. Designed for those aiming for grades between A* and E, it makes learning straightforward, teaching you everything you need to know to gain a prestigious qualification.

Making it easy to learn from any location, the only equipment you need for this course is a computer with an internet connection, a calculator, a notepad and pen.

By the time you have completed this Cambridge Mathematics IGCSE Extended course on numbers, you will be in good stead to take the next step in your education or career.

What to expect

This Cambridge Mathematics IGCSE Extended course on numbers is broken down into various sections, lessons and steps, with each being on a specific area of knowledge.

Work your way through each section at your own pace, entering your answers to questions, to have them marked in real-time and correct any mistakes. This interactive method of learning makes it easy to ensure you fully understand before marking each topic as complete.

The progress bar highlights your course completion percentage as you work your way through each stage, making learning enjoyable, simple and fun.


  • Teaches a comprehensive understanding of numbers
  • Broken down into manageable sections
  • Makes it easy to learn with minimal equipment
  • Enter your answers and mark them as you progress
  • Allows you to further your understanding of mathematics
  • Learn at your own pace

Course Materials


Integers on Number Line

Positive Integers and Zero on Number Plane

Integers on Number Plane

Combined Operations

Directed Numbers on Number Line

Directed Numbers: Fractions

Directed Numbers: Decimals


Index Notation



Highest Common Factor (HCF)

Lowest Common Multiple (LCM)

Order of Operations

Special Number Sets

Higher Order Roots

Prime Numbers Composite Numbers

Prime Factors


Square Roots

Even Numbers Odd Numbers

Irrational Numbers

Calculator Computations


Definition of Sets

Set Builder Notation

Complements of Sets

Number Sets


Intersection and Union Sets


Representing Venn Diagrams

Venn Diagram Regions with Two Sets

Venn Diagram Regions with Three Sets

Numbers in Regions


Simplifying Fractions

Improper Fractions and Mixed Numbers

Adding and Subtracting Fractions

Multiplying Fractions

Dividing Fractions

Mixed Operations with Fractions

Squares of Fractions

Square Roots of Fractions

Fraction of an Amount

Comparing Fractions

Converting Fractions to Decimal Numbers



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