Stage: 1 Challenge Level: 
Look at the tops and the bottoms of the dominoes separately.
Interactivities. Trial and improvement. Arithmetic sequence. Geometric sequence. Dominoes. Multiplication & division. Addition & subtraction. Investigations. Factors and multiples. Comparing and Ordering numbers.
Published March 2003,April 2003.
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