Functional Money Maths, Mobile phone tariffs, form an expression and substitute (UK version - £'s)

Real-life contextual Maths Lesson(s) on comparing phone tariffs by forming expressions for the costs and substituting - then an activity comparing different tariffs. For further investigation you could extend this into spreadsheets and make it into a project- useful for KS3/KS4 building functional money skills.

Please let me know if you like this resource, thanks!