12.07.2015 Views

Math PowerPoint

Math PowerPoint

Math PowerPoint

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Multiplying Signed Numbers• A negative number times a negative number equals apositive number• -3 * -4 = +12• A positive number times a positive number equals apositive number• +9 * +11 = +99• A negative number times a positivenumber equals a negative number• +6 * - 5 = -30

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