This is everything you need to know for Edexcel GCSE Maths for the 'number' portion of the qualification
Slide 2
Structure and Calculation
You must be able to: * Order positive and negative integers, decimals and fractions and understand place value * Use the symbols =, ≠, <, >, ≤, ≥ * Be able to add, multiply, subtract, and divide fractions and whole numbers * Use conventional notation (brackets, square root signs, powers, etc.) * Understand the concepts and vocabulary of prime numbers, factors,
multiples, common factors, common multiples, highest common factor,
lowest common multiple, prime factorisation, including using product
notation and the unique factorisation theorem
* Apply systematic listing strategies (factorials) * Be able to use positive integer powers and the associated real roots * Calculate with roots, integer indices, fractions, and multiples of π * Standard form
Slide 3
Fractions, Decimals, and Percentages
You must be able to: * Work interchangeably with terminating decimals and their corresponding
fractions * Identify and work with fractions in ratio problems * Interpret fractions and percentages as operators
Slide 4
Measures and Accuracy
You must be able to: * Use standard units of mass, length, time, money and other measures, using decimal quantities where
appropriate * Estimate answers and check calculations using approximation and estimation,
including answers obtained using technology * Round numbers and measures to an appropriate degree of accuracy and use
inequality notation to specify simple error intervals due to truncation or
rounding * Apply and interpret limits of accuracy