IAL Pure 3 Numerical Methods exam questions

Exam-style questions on numerical methods for Edexcel IAL Pure 3 (WMA13): change of sign, iteration and staircase and cobweb diagrams. With full solutions.

This resource covers the whole of Chapter 8 (Numerical Methods) of the Pearson Edexcel International A Level Pure Mathematics 3 course. All questions are original and written in the style of the WMA13 paper — these are not reproduced past paper questions.

What’s covered

Locating roots using a change of sign, and knowing when the method fails
Rearranging an equation into an iterative formula
Using an iterative formula and recording each iteration to the required accuracy
Staircase and cobweb diagrams
Showing that a root lies in a given interval

How to use it

Works as homework, as consolidation across a sequence of lessons, or as revision before the WMA13 paper. Writing down every iteration to the stated accuracy is a mark in itself, so the solutions model the full table rather than jumping to the final value.

What’s included

Question paper (PDF, printable)
Full worked solutions (PDF) — complete method, not just final answers
Questions arranged in increasing difficulty

Specification

Written for Edexcel International A Level Mathematics, Pure Mathematics 3 (WMA13), Chapter 8. Also suitable for Edexcel A Level Mathematics 9MA0 and for any A Level course covering this material at A2.