Edexcel GCSE Maths Specification - Number

Number - Edexcel GCSE Specification

• This is everything you need to know for Edexcel GCSE Maths for the 'number' portion of the qualification

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

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

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