# Oxford Revise: Edexcel GCSE Maths Higher Answers

**Chapter 1:** Calculating with all four operations, place value, powers, and indices

**Chapter 2: **Rounding, truncating, error intervals, and estimating

**Chapter 3: **Factors, multiples, primes, standard form, and surds

**Chapter 4: ** Fractions, decimals, percentages

**Chapter 5: **Algebra basics

**Chapter 6: **Linear graphs

**Chapter 7: **Real-life graphs

**Chapter 8: **Solving inequalities in 1 or 2 variables

**Chapter 9: **Factorising quadratic expressions and solving quadratic equations

**Chapter 10: **Quadratic graphs, iterations, solving quadratic inequalities

**Chapter 11: **Solving simultaneous equations

**Chapter 12: **Sequences

**Chapter 13: **Cubic graphs, reciprocal graphs, exponential graphs, transformation of graphs

**Chapter 14: **Non-linear real-life graphs

**Chapter 15: **Algebraic fractions, rearranging formulae with algebraic fractions, proof, functions and composite functions

**Chapter 16: **Ratio

**Chapter 17: **Compound measures and multiplicative reasoning

**Chapter 18: **Polygons, angles, and parallel lines

**Chapter 19: **Area and perimeter (including circles)

**Chapter 20: **Surface area and volume

**Chapter 21: **Pythagoras and 2D trigonometry

**Chapter 22: **Similarity and congruence

**Chapter 23: **Transformations

**Chapter 24: **Plans, elevations, constructions, bearings

**Chapter 25: **Trigonometry in 3D, sine and cosine rules

**Chapter 26: **Circle theorems and circle geometry

**Chapter 27: **Vectors

**Chapter 28: **Probability

**Chapter 29: **Tables, averages, and range

**Chapter 30: **Charts and graphs

**Chapter 31: **Data collection, cumulative frequency, and box plots