1.3B Multiplying and Dividing integers
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Transcript of 1.3B Multiplying and Dividing integers
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1.3B MULTIPLYING AND DIVIDING INTEGERS
I can multiply and divide integers to
solve problems involving integers.
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MULTIPLYING INTEGERS
The product of 2 integers with the same sign is positive
Ex: 3(2) = 6 and -3(-2) = 6
The product of 2 integers with different signs is negative
Ex: -3(2) = -6 and 3(-2) = 6
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DIVIDING INTEGERS
The quotient of 2 integers with the same sign is positiveEx:
The quotient of 2 integers with different signs is negativeEx:
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PRACTICE
Find the product:3(7)+3 and +7 same signs product is positive
-4(5)
6(-3)
(-9)2
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PRACTICE
Find the quotient
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TRY THIS!
Find the vertical speed of a climber who goes from an elevation of 8,120 feet to an elevation of 6,548 feet in three hours.
How far did he climb? 6548 – 8120 = -1572 feet (final elevation – initial elevation)
How long did it take? 3 hours
Negative vertical speed because elevation is decreasing
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SOMETHING TO THINK ABOUT
What if the climber had been a diver? How would you represent diving 100 m below the surface? -100 since it is below
Keep this in mind!Read the context and remember
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ASSIGNMENT
ODDS ONLYPg. 18 #3,5, 11-15,19,21,27-35