A Learning in Motion Top Ten Selection

Curious and Useful Math

Subject Area:

Mathematics

Address/URL:

http://personal.cfw.com/~clayford/

Description:

Need a little help with math. This site gives you a few tricks for quick calculations. Learn shortcuts to squareroots and multiples of 11. Know right away whether a number is divisible by certain other whole numbers.

How You Can Use This Source:

Experiment with dividing numbers using the Tricks.
Learn how to do square roots by hand.
Discover the roots of mathematical vocabulary.
Find out the mystery of number 1729.

Go to Curious and Useful Math.