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September 12 2025

IGCSE Core/Extended Maths

IGCSE Maths: Complete Guide for Core and Extended Exams

Mathematics is a scoring subject in the IGCSE Maths syllabus if you approach it strategically. Whether you are preparing for the Core or Extended level, understanding the syllabus structure, practicing numerical problems, and avoiding common mistakes is key to achieving top marks.

This blog is your ultimate guide to preparing for IGCSE Maths. Here, you’ll find practical IGCSE maths tips, detailed notes, and a structured explanation of the IGCSE maths syllabus. You’ll also learn which chapters to prioritize, explore frequently asked questions from past papers (PYQs), discover mistakes students commonly make, and download a checklist to track your study progress.

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Understanding the IGCSE Maths Syllabus: Core and Extended

The IGCSE Maths exam offers two levels – Core and Extended – designed to cater to different abilities. Understanding the structure of both will help you plan your preparation accordingly.

Core Syllabus

The Core syllabus covers essential topics with moderate difficulty. It’s suitable for students aiming for grades C to G. Key areas include:

Number systems

Algebra basics

Geometry and mensuration

Statistics and probability

Linear equations and inequalities

Graph plotting

Extended Syllabus

The Extended syllabus is for students aiming for higher grades (A* to C). It includes:

Advanced algebraic manipulation

Quadratic equations

Trigonometry

Coordinate geometry

Calculus basics (optional depending on syllabus updates)

Advanced statistics and probability

Both levels require practice, conceptual clarity, and time management. Extended students should focus on advanced problems and multiple-step solutions.

Chapter-wise Priorities for IGCSE Maths

To make the most of your study hours, focus on chapters that appear more frequently or are heavily weighted in exams.

High Priority Chapters

Algebra:

Solving equations

Factorization and expansion

Inequalities

Graphs of functions

Geometry and Trigonometry:

Angles, parallel lines, and polygons

Area and volume of 2D and 3D shapes

Trigonometric ratios and identities

Statistics and Probability:

Data interpretation

Probability calculations

Mean, median, mode

Coordinate Geometry:

Equations of lines

Midpoints, gradients, and distance formulas

Functions:

Understanding patterns

Linear and quadratic functions

Medium Priority Chapters

Graph transformations

Simultaneous equations

Polynomials and sequences

Low Priority Chapters

Topics rarely tested or optional in certain papers

Complicated problems that require extended knowledge

IGCSE Maths Tips: How to Prepare for Exam Success

1. Master the Basics First

Start with understanding concepts from the basics before attempting advanced problems. Without foundational knowledge, you’ll struggle with complex topics.

2. Practice Consistently

Solve problems every day

Alternate between easy and challenging problems

Attempt timed practice papers to build speed

3. Create Formula Sheets

List important formulas for algebra, geometry, and trigonometry

Revise formulas daily to retain them for the exam

4. Work on Word Problems

Apply mathematical concepts in real-life scenarios. Practice interpreting problems before solving them.

5. Revise Using Notes

Summarize each chapter’s key points

Use diagrams and flowcharts for geometry and graph plotting

Solve exercises at the end of chapters

6. Use Past Papers (PYQs)

Helps identify frequently asked topics

Builds familiarity with question patterns

Improves confidence and accuracy

7. Time Management Practice

During mock exams, allocate time per section and avoid spending too much time on one question.

8. Stay Calm and Confident

Develop a positive mindset before exams. Practice deep breathing and mental relaxation techniques to reduce anxiety.

Common Mistakes to Avoid in IGCSE Maths

Skipping the Revision of Formulas
Students often forget key formulas during exams. Regular revision is essential.

Not Reading Questions Carefully
Misinterpreting problems leads to incorrect answers.

Overcomplicating Solutions
Stick to the method you know rather than trying to apply unnecessary steps.

Ignoring Units and Accuracy
Always write units and double-check your answers.

Practicing Only Easy Problems
Challenge yourself with harder problems to avoid surprises in the exam.

Not Attempting All Questions
Even if unsure, attempt every question as partial marks are awarded.

Frequently Asked Questions (PYQs) for IGCSE Maths

Algebra

Solve quadratic equations by factorization and completing the square

Expand and simplify algebraic expressions

Solve inequalities and plot their solutions

Geometry

Find areas and volumes using formulas

Prove properties of triangles, circles, and polygons

Apply the Pythagorean theorem in real problems

Trigonometry

Calculate unknown sides and angles using ratios

Apply identities like sin²θ + cos²θ = 1

Solve problems involving bearings and angles of elevation

Statistics and Probability

Interpret data from graphs and tables

Calculate the probability of simple events

Find mean, median, and mode from datasets

Coordinate Geometry

Plot points and graphs on the Cartesian plane

Find the equation of lines and their intersections

Use distance and midpoint formulas effectively

Sample Study Plan for IGCSE Maths

Week 1:

Revise algebraic formulas

Solve at least 50 problems on equations and inequalities

Week 2:

Practice geometry problems

Revise area and volume formulas with diagrams

Week 3:

Study trigonometric ratios and identities

Solve real-life application problems

Week 4:

Work on statistics and probability problems

Practice word problems for interpretation

Week 5:

Attempt full past papers

Time yourself and review solutions

Final Week:

Revise formula sheets and important questions

Practice problem-solving techniques and manage exam stress

Downloadable IGCSE Maths Checklist

Use this checklist to track your study progress and ensure exam readiness.

✅ Revised all algebra formulas
✅ Solved quadratic and linear equations
✅ Practiced geometry problems with diagrams
✅ Worked on trigonometry ratios and identities
✅ Solved statistics and probability problems
✅ Attempted at least 5 past papers
✅ Reviewed unit formulas and definitions
✅ Improved problem-solving speed through timed tests
✅ Avoided careless mistakes by double-checking answers
✅ Maintained a positive mindset before exams

[Download IGCSE Maths Checklist PDF]

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Final Thoughts

With a clear study plan, regular practice, and a structured approach, excelling in IGCSE Maths is within your reach. Whether you're preparing for the Core or Extended exam, staying consistent with your studies, solving past papers, and revising formulas will set you up for success.

This guide has given you actionable strategies, chapter-wise priorities, notes tips, PYQs, common mistakes to avoid, and a downloadable checklist to track your progress. Apply these methods, stay focused, and give your best effort—your hard work will reflect in your results.

Start your preparation today and build confidence in your ability to tackle the IGCSE Maths exam with ease!

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