Multiplying and Dividing Rational Numbers 11/19/15

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Presentation transcript:

Multiplying and Dividing Rational Numbers 11/19/15 The Golden Rule of Multiplying and Dividing A negative symbol ( - ) means opposite -3 • 5 Three groups of five is 15 The opposite of 15 is (-15) 16  -8 16 divided by 8 is 2 The opposite of 2 is (-2)

Multiplying and Dividing Rational Numbers 11/19/15 Shortcut: (-28)  (-4) 28 divided by four is 7 The opposite of 7 is (-7) The opposite of (-7) is 7 Multiplying/Dividing by the same sign = positive product/quotient Multiplying/Dividing by different signs = negative product/quotient