Stage: 2 Challenge Level: 
What are the possible results of adding the red dice?
Is there a good way of making sure you find all the possibilities?
What are the possible results of taking away the number on the green dice from the red totals?
How will you record what you've found out?
Is there a good way of making sure you find all the possibilities?
What are the possible results of taking away the number on the green dice from the red totals?
How will you record what you've found out?
Experimental probability. Addition & subtraction. Multiplication & division. Trial and improvement. Visualising. Working systematically. Theoretical probability. Combinations. Investigations. Dice.
Published October 1998.
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