The topic of this worksheet is no longer on the GCSE specification but is still useful to provide an opportunity for learners to think about solving equations using a method of trial and improvement.

Section A provides some tables and equations and leads learners through the process of trialling values to solve equations and then improving their trials to find answers correct to 2 decimal places.

Section B is similar to section A but requires answers to 3 significant figures.

Section C then provides some questions regarding the 2D and 3D shapes that can be solved using trial and improvement.