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OpenStudy (anonymous):
When modeling negative thirteen plus positive twelve using red chips for negative integers and black chips for positive integers, how many and what color chips remain for the solution?
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OpenStudy (anonymous):
-13 + 12 = ??? Well... 12 (twelve) black chips are used, and 13 (thirteen) red chips are used. To complete the equation, 12 - 13 (rearrangement) = -1. Meaning we would have one red chip as the solution, is what I am going to assume they are asking. (:
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