These PowerPoint slides are perfect for practicing using formulas.

There are 5 challenge questions in total, which are all adapted to different levels, There is a 1 star, 2 star and 3 star challenge. Each slide also has an extra challenges for the high achievers.

These challenges can be done individually or in teams, how ever the teacher see fit.

The answers are provided on custom animation after the question and challenge has been presented.

A great resource for extra algebra practice in using formulae.