Algebra: Notation & Substitution
Full worksheet and solutions
Introduction
A free notation & substitution worksheet for GCSE and iGCSE Maths, covering the Algebra content at both Foundation and Higher tier. It works through the substitution method, rearranging for the leftover, definite integrals: change the limits, trig & exponential substitutions and definite trig/exp integrals & area. Questions are grouped into fluency, reasoning and problem solving, so you build the technique first and then apply it to the kind of unfamiliar, multi-step questions that separate grades in the exam. Written to match the style and presentation of Edexcel iGCSE 4MA1 and the other major GCSE boards. Full step-by-step solutions are provided in a separate PDF, so you can check your method as well as your answer.