Math2
Math2.org: Number Notation
At this website from Math2.org you will find tables with information about number words, meanings, and the symbols used to express them. At the very bottom there is also a Java Base Conversion Calculator.
NumberNut
Number Nut: Shapes Make the Numbers
A brief overview of the ten shapes used to represent numbers in the United States and number symbols of different cultures. Learn the symbols used for Chinese numbers when you play Chinese Symbols Memory. Then, test your counting ability...