1.3B MULTIPLYING AND DIVIDING INTEGERS

I can multiply and divide integers to

solve problems involving integers.

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

DIVIDING INTEGERS

The quotient of 2 integers with the same sign is positiveEx:

The quotient of 2 integers with different signs is negativeEx:

PRACTICE

Find the product:3(7)+3 and +7 same signs product is positive

-4(5)

6(-3)

(-9)2

PRACTICE

Find the quotient

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

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

ASSIGNMENT

ODDS ONLYPg. 18 #3,5, 11-15,19,21,27-35