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What Is The Symbol For Positive And Negative? [Solved]
The plus and minus signs, + and −, are mathematical symbols used to represent the notions of positive and negative, respectively.
Understanding the Rules of Positive & Negative Signs/Numbers
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Understand and Learn the Rules of Positive and Negative Numbers
John Zimmerman, http://www.tabletclass.com, explains how to add, subtract, multiply and divide
Positive and Negative Logic
Digital Electronics: