You may also like

problem icon

I'm Eight

Find a great variety of ways of asking questions which make 8.

problem icon

Eight Dominoes

Using the 8 dominoes make a square where each of the columns and rows adds up to 8

problem icon

Magic Squares

An account of some magic squares and their properties and and how to construct them for yourself.


Age 14 to 16 Challenge Level:
Make a table of values that can be made up and look out for the point where you conjecture that all subsequent values can be made up. Then prove your conjecture must be true.