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Module 2 Lesson 16.notebook
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December 01, 2014
Applying the Properties of Operations to Multiply and Divide
Rational Numbers
Do Now: Lesson 15 Exit Ticket
12/1/14Module 2, Lesson 16
Homework: Lesson 16 Problem Set
#1 and 2Question # 3 is optional complete as a challenge!
CRS # 8 Due Tomorrrow
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Go over Exit Ticket 15
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-6 x 2 x (-2) x (-5) x (-3)
Example 1: Using the commutative and Associative Properties to Efficiently Multiply Rational Numbers
a.) Evaluate the expression below.
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-1 x (-3) x 10 x (-2) x 2
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An Even Number of Negatives ------> Answer will be Positive
An Odd Number of Negatives ------> Answer will be Negative.
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Distributive Property:
a(b + c) = ab + ac
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Multiplicative Inverse:
a( ) = 1a1
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Closing:
How do we determine the sign of expressions that include several products and quotients?
Name a property of operations, and describe how it is helpful when multiplying and dividing rational numbers.
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