Multiplying and Dividing Integers Using Models

Multiplying and Dividing Integers

Let's refresh!

Answer the following questions!

Fill in the Blanks

-5 + 17

Fill in the Blanks

22 - 45

Fill in the Blanks

-14 - (-19)

We have two more operations to explore!

• Multiplication

• Division

Let's check for understanding!

Answer each of the following questions!

Multiple Choice

$$-8\ \times\ 3$$  

• 24

• 11

• -24

• -11

Multiple Choice

$$-21\div7$$  

• -3

• 3

• 147

• -147

Multiple Choice

$$\frac{33}{-3}$$  

• 11

• -30

• 30

• -11

Multiple Choice

$$16\times-2$$  

• 8

• -8

• -32

• 32

Great job!

Now, let's practice!

Fill in the Blanks

$\frac{12}{6}$  

Fill in the Blanks

$-5\times8$  

Fill in the Blanks

$\frac{\left(-32\right)}{8}$  

Fill in the Blanks

$\left(-9\right)\left(-7\right)$  

Fill in the Blanks

$56\div-8$  

Multiple Choice

Rory and Margo are debating who is correct when solving the problem (-34)(-2). Rory says the answer is -68 and Margo says it is 68. Who is correct?

• Rory

• Margo

Open Ended

Explain your answer from the previous slide.

Rory and Margo are debating who is correct when solving the problem (-34)(-2). Rory says the answer is -68 and Margo says it is 68. Who is correct?

Poll

Self- Reflection: On a scale of 1-5, rate your understanding of multiplying and dividing integers.

• 1

  I am still really struggling with the rules for multiplying and dividing integers.

• 2

• 3

  I am starting to get the hang of multiplying and dividing integers.

• 4

• 5

  I fully understand the rule for multiplying and dividing integers and I can explain it to others.