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Curated OER

Digital Codes

For Students 9th - Higher Ed
 In this electrical circuit worksheet, students answer a series of 12 open-ended questions about various types of digital codes. This worksheet is printable and the answers are revealed online.
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University of Illinois

University of Illinois: Mste: The Binary Calculator Applet

For Students 9th - 10th
The binary number system is used to represent data in digital form. This site provides a binary calculator that will convert between binary, octal, decimal and hexadecimal, perform simple addition and subtraction, and do compliment and...
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Math Is Fun

Math Is Fun: Hexadecimal Drum Machine

For Students 9th - 10th
Create rhythms on this 4-instrument hexadecimal drum machine and see what your rhythms look like in the binary, decimal, and hexadecimal number systems.

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