Introduction to Ratio Grids

Ratio Grids can be used whenever you have a problem that starts with 3 numbers, and you have to times and divide. They are a clear way of laying out your working, and knowing which order to do the calculation.

You will need a calculator to do the practice questions, but first, here are 2 videos. The first shows you how to solve a small ratio grid, the second deals with the larger ones:

Using Ratio Grids
Larger Ratio Grids

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Now you can use Ratio Grids to solve a Maths Problems, here are some types of problem you can try:


I am grateful to Mr. Holding who teaches locally for this link. So simple! Lots of GCSE questions presented one at a time. A couple of examples are reproduced below.

The Proof Questions on this site are invaluable – the best collection I have seen.

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Understanding Plans and Elevations

Looking for a website that helps you to learn about Plans and Elevations? And you would like to have some fun as well? Oh, and have to work out new approaches to problems which look easy at first but aren’t?

You will need:

Be patient loading up the last 2 links – it takes a few moments.