Stage: 2 Challenge Level: 
Match cards representing equivalent ratios.
Full screen version .
This text is usually replaced by the Flash movie.
Games. Addition & subtraction. Practical Activity. Interactivities. Visualising. Generalising. Ratio. Tangram. Working systematically. Compound transformations.
Published February 2006.
Copyright © 2007. University of Cambridge. All rights reserved.
NRICH is part of the family of activities in the Millennium Mathematics Project, which also includes the Plus and Motivate sites.
email: nrich@damtp.cam.ac.uk
