Module 5 Review- Multiplying with Multiples of Ten

Module 5 Review- Multiplying with Multiples of Ten

We're going to review what we have been practicing with multiplication!

Multiple Choice

TRUE OR FALSE

When we multiply, we can break apart one of the factors to make the multiplying easier. This is called the Distributive Property.

• TRUE

• FALSE

17 x 7= ___

How can we break apart one of these numbers?

Multiple Choice

17 x 7 = ___

• 149

• 109

• 87

• 25

Remember:

Sometimes you can ZOOM OUT and out-smart the question! :)

Let's try it.

If you get stuck on a big multiplication problem, use your strategies!

For example...

If you don't know how to solve the problem, what strategies could you use?

8 x 90 = ___

Multiple Choice

Let's try it! 8 x 90 = ___

• 170

• 560

• 810

• 720

Which of these is a way to multiply

5 x 40?

A. 5 x (10 + 10 +10 +10)

B. 4 x (10 + 10 + 10 +10 + 10)

C. 5 x (10 x 10 x 10 x 10)

Multiple Choice

Which of these is a way to multiply 5 x 40?

• 5 x (10 + 10 +10 +10)

• 4 x (10 + 10 + 10 +10 + 10)

• 5 x (10 x 10 x 10 x 10)

Rachel has 4 boxes of rocks with 20 rocks in each box. Which equation can be used to find the number of rocks in Rachel's boxes?

Multiple Choice

Rachel has 4 boxes of rocks with 20 rocks in each box. Which expression can be used to find the number of rocks in Rachel's boxes?

• 4 x 2 + 0

• 4 + 2 x 10

• 4 x 2 + 10

• 4 x 2 x 10

Remember:

When there are missing numbers on one side of the equation, what is our goal?

For example:

8 x 10 = (8 x ___) + (8 x ___)

Multiple Select

Select ALL the number combinations that could make this equation balanced.

8 x 10 = (8 x ___) + (8 x ___)

• 5 and 5

• 2 and 8

• 4 and 5

• 10 and 1

Great Job!!

Okay, it's time for you to show what you know!

😃