Stage: 3 Challenge Level: 
Can you work out how many of the squares would be shaded for the percentage that the computer asks for?
It will keep asking until you get 100%!
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This game is based on an idea from "Mathematics Accomplished: the Year 6 Booster", published by BEAM Education .
Percentages. Visualising. Small software. Rotations. Mathematical reasoning & proof. Generalising. Working systematically. Games. Interactivities. Spreadsheets.
Published June 2002.
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
