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Graphic
Math2

Math2.org: Number Notation

For Students 3rd - 8th Standards
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.
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Unit Plan
NumberNut

Number Nut: Shapes Make the Numbers

For Students Pre-K - 1st
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...
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Activity
Quia

Quia: Word and Digit Identification 0 to 25 Matching

For Students Pre-K - 1st
This website for young children gives them practice identifying words and digits from 0 to 25 in a matching type format.
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Activity
Quia

Quia: Identifying Numerals

For Students Pre-K - 1st
This website for young children gives practice identifying words and digits from 0 to 25 in a flashcard type format.