Numbers & the Number System (Edexcel IGCSE Maths A) Get ready for your Edexcel IGCSE Maths A exams with our revision resources. Find everything you need to revise this topic, so you can go into your exam confident and prepared. Teachers and examiners write all our resources, and they’re designed specifically for each exam board. We regularly update them to match the latest syllabus, so you’ll only revise the most accurate, up-to-date information. Explore the collection below to get started.
Numbers & the Number System Revision Notes Number Toolkit Mathematical Symbols Order of Operations (BIDMAS/BODMAS) Negative Numbers Money Calculations Addition & Subtraction Multiplication & Division Operations with Decimals Related Calculations Set Notation & Venn Diagrams Set Notation & Venn Diagrams Prime Factors, HCF & LCM Types of Number Prime Factor Decomposition Uses of Prime Factor Decomposition HCF & LCM Powers, Roots & Standard Form Powers & Roots Laws of Indices Converting To & From Standard Form Operations with Standard Form Fractions Basic Fractions Mixed Numbers & Improper Fractions Adding & Subtracting Fractions Multiplying & Dividing Fractions Percentages Basic Percentages Percentage Increases & Decreases Reverse Percentages Compound Interest & Depreciation Compound Interest Depreciation Fractions, Decimals & Percentages Converting Fractions, Decimals & Percentages Recurring Decimals Ordering Fractions, Decimals & Percentages Rounding, Estimation & Bounds Rounding & Estimation Upper & Lower Bounds Surds Simplifying Surds Rationalising Denominators Using a Calculator Using a Calculator Ratio Toolkit Introduction to Ratios Sharing in a Ratio Working with Proportion Ratio Problem Solving Ratios & FDP Multiple Ratios Exchange Rates & Best Buys Exchange Rates Best Buys Direct & Inverse Proportion Direct Proportion Inverse Proportion Numbers & the Number System Exam Questions Number Toolkit Exam Questions Set Notation & Venn Diagrams Exam Questions Prime Factors, HCF & LCM Exam Questions Powers, Roots & Standard Form Exam Questions Percentages Exam Questions Compound Interest & Depreciation Exam Questions Fractions, Decimals & Percentages Exam Questions Rounding, Estimation & Bounds Exam Questions Using a Calculator Exam Questions Ratio Toolkit Exam Questions Ratio Problem Solving Exam Questions Exchange Rates & Best Buys Exam Questions Direct & Inverse Proportion Exam Questions Numbers & the Number System Flashcards Number Toolkit Set Notation & Venn Diagrams Prime Factors, HCF & LCM Powers, Roots & Standard Form Fractions Percentages Compound Interest & Depreciation Fractions, Decimals & Percentages Rounding, Estimation & Bounds Surds Using a Calculator Ratio Toolkit Ratio Problem Solving Exchange Rates & Best Buys Direct & Inverse Proportion Edexcel IGCSE Maths A Past Papers