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Mathematics 9 Online
OpenStudy (anonymous):

how do you subtract two negitvie numbers from eachother ex (-18) - (-15) = ? How do you subtract a negitive from a positive ex;(+18) - (-29) = ? And how do you add two negitive numbers together ex (-12) + (-15) = ? How do you add two positives together ex; (+11) + (+24) = ?

OpenStudy (anonymous):

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