# FM L2.3 Evaluate expressions and make substitutions in given formulae in words and symbols

This revision aid for L1/L2 (mainly L2) Pearson Edexcel Functional Skills maths gives a side-by-side comparison of perimeter, area and volume, the sort of units that would be involved with each and a worked Functional Skills example of each with a PAV mnemonic for remembering which is which. I have also looked through the last few years of Pearson Edexcel FS for the sorts of questions that require each one.

Note: All images from Pixabay, so do not need crediting.

**Editor's note**

This is a handout for Functional Skills L1/L2 which talks about formulas, substitution and BODMAS (BIDMAS).

“Editor’s note*

It includes worked examples from past papers and useful tips and hints. Fully mapped to L2 FM and GCSE Maths 1-5

A set of Formula 1 scenarios based on the four rules of mathematics and using formulae expressed in words and/or numbers. This resource tests students’ ability to use formulae to solve problems based on a motor racing car travelling on a race track. Some of the scenarios test the students ability to convert units to get a sensible answer. I encourage my students to estimate the answers before attempting for real! Some do, some don’t …