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        Subtracting Positive and Negative Numbers | PBS Math Club

        Proposing the concept that subtraction does not exist, it is merely adding the opposite, the Math Club parodies The Matrix and Batman.

        Explore the idea that addition and subtraction are two sides of the same coin and can be used to explain lots of things: elections, good and bad feelings, even the plot of The Dark Knight, and when the matrix asks you to add and subtract long strings of positive and negative numbers for homework, here's a neat trick to help you out.

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