Multiplying/ Dividing integers

Multiplying and Dividing Integers

Asynchronous Monday March 1, 2021

Learning Goal

I can multiply and divide integers and can list my steps in order.

Multiplication and Division review...

• Multiplication answers are products.

• Division answers are quotients.

Multiplication rules.

Same signs, Positive product.

Different signs, Negative product.

Division rules.

Same signs, Positive quotient.

Different signs, Negative quotient.

Let's apply these rules to some problems.

Multiple Choice

Find the product.

3(-5)

• 15

• -8

• -15

• 8

If you chose -15 you are right!

First you multiply the numbers, then you check the signs, because they are different you know your product is Negative!

Now let's try some more multiplication problems.

Multiple Choice

Find the product.

(-2)(-8)

• 16

• -16

Multiple Choice

Find the product

1(-10)

• -10

• 10

• 11

• -11

Multiple Choice

Find the product.

9(-8)

• 72

• -72

• 17

• -17

Multiple Choice

Find the product

(-2)(-5)

• 10

• -10

• 7

• -7

Multiple Choice

Find the product

3(6)

• 18

• -18

• 9

• -9

Poll

Temperature Check!

How do you feel about Multiplying integers?

Multiple Choice

Now let's try some division.
Find the quotient.

 $\frac{22}{11}$  

• 11

• -11

• 5

• 2

The answer is 2.

Here is how it is done. First you divide 22 by 11. Then you check the signs. Because they are the same you know the quotient is Positive. Now let's try some more division problems.

Multiple Choice

Find the quotient

• 5

• -5

• 3

• -3

Multiple Choice

Find the quotient

24/6

• -17

• 18

• --5

• 4

Multiple Choice

Find the quotient

• 5

• 6

• -5

• -6

Multiple Choice

Find the quotient

• -4

• -6

• 4

• 6

Multiple Choice

Find the quotient

-500 ÷ (-50)

• -450

• -550

• -10

• 10

Poll

Temperature Check!

How do you feel about Dividing integers?

End of lesson. Remember...

• Office hours are from 2 pm to 3:30 pm. Please join if you have questions.

• Finish all missing assignments.

• Have a great day, see you on Tuesday!