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Published byDella Booker Modified over 9 years ago
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Multiplication and Division of Integers
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Multiplying! / Steps: / Ignore signs and multiply / Determine the sign / Positive times a Positive = Positive / Positive times a Negative = Negative / Negative times a Positive = Negative / Negative times a Negative = Positive / Steps: / Ignore signs and multiply / Determine the sign / Positive times a Positive = Positive / Positive times a Negative = Negative / Negative times a Positive = Negative / Negative times a Negative = Positive
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Here’s a way I can Remember! / To remember whether your answer will be positive or negative when MULTIPLYING or DIVIDING, we’ll use:
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Another way to Remember! / Same signs are always positive / Opposite signs are always negative / Same signs are always positive / Opposite signs are always negative
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When multiplying Integers, cover the Two signs you are using Ex.: 5 (-3) What sign is left uncovered? Negative, - That is the sign of The answer = -15
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Examples (-10)(3) = 21 -5 = -13 -6 =
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