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Dame EdNA Project

Web Resources on: Number

Beat the Calculator! Fifty-six mental arithmetic shortcuts. Amaze your friends!
Data Powers of Ten A collection of estimates of the quantities of data contained by the various media, from a single bit (.1 byte) to all of the words ever spoken by human beings (5 exabytes). There could be a great assignment.
Magic Squares and Perfect Squares A website devoted to these creatures. Contains a nice collection of puzzles based on these squares.
****Another Magic Square Site This site includes both numerical squares, and word squares.
Magic Cubes As one can see, magic squares and cubes are not just frivolous mathematical puzzles, they apply to real mathematical studies including factor analysis, matrices, and combinatorics.
Favorite Mathematical Constants Maybe you could add your favourite constant to this list. 
The Largest Known Primes A page devoted to VERY LARGE prime numbers. 

PI - A Very Special Number

PI  Pi to 50 000 decimal places 
The PI Trivia Game Here are 25 (given to you 5 at a time) fun pi-related questions, picked randomly from Eve's exciting pi question database! Get ready for the thrill of your lifetime, the ultimate challenge, The Pi Trivia Game!
A Common Book of Pi Pi has been the subject of a great deal of mathematical (and popular) folklore. It's been worshipped, maligned, and misunderstood. Overestimated, underestimated, and legislated. Of interest to scholars, crackpots, and everyday people. Here is a website devoted to it all.
The Quest for the Holy Value Yes, its pi again. Technically, it has been proven by Knuth that you can estimate pi using the factors of pairs of large random integers. So, if lots of folks submit two large random integers, eventually the value of pi can be pegged down to an accuracy of 1 (or even 2!) decimal places. At the moment, the estimated value of pi is about 3.4, so many more visitors are needed.

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Queensland Association of Mathematics Teachers (QAMT)
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