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Activity: Modular Arithmetic Lesson
Go to: http://mathforum.org/alejandre/clock.html (opens a new window)
Description: Clock (or modular) arithmetic is arithmetic you do on a clock instead of a number line. Investigate arithmetic using a 12-hour, 10-hour, and 2-hour clock.
Technology Type: Java Applet 
Author: Suzanne Alejandre
Language: English 
Cost: Does not require payment for use

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Tools: Clock Arithmetic on a 12-hour clock
Clock Arithmetic on a 10-hour clock
Clock Arithmetic on a 2-hour clock
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