4.4B/C/D/E

4.4B/C/D/E/F

Multiplying by 10's, 100's 1,000's, area models, 2 digit by digit and long division!

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By ALEXIS BALBONI

When multiplying by numbers that end in zero we just multiply the first digits and then add zeros!

• 30 x 100 =

• 800 x 2,000 =

• 110 x 900 = ​

Some text here about the topic of discussion

Multiple Choice

50 x 40

• 2,000

• 200

• 900

• 20

Multiple Choice

800 x 900 =

• 7,200

• 720

• 17,000

• 720,000

Multiple Choice

110 x 200

• 22

• 220

• 22,000

• 2,200

We can divide using the same strategy...!

• ​240 ÷ 8 =

• 3,600 ÷​ 60 =

• 560 ÷​ 70 =

Good job!​

Multiple Choice

350 $$\div$$  7 =

• 600

• 60

• 50

• 500

Multiple Choice

$$400\ \div\ 80\ =\$$  

• 5

• 50

• 20

• 200

Multiple Choice

$$2,400\ \div\ 60\ =$$  

• 300

• 40

• 400

• 30

Multiple Choice

The area model represents 23 X 47.

What is the product of the purple section?

• 3 X 7 = 2.1

• 3 X 7 = 21

• 3 X 7 = 210

• 3 X 7 = 2100

Multiple Choice

The area model represents 23 X 47.

What is the product of the red section?

• 20 X 7 = 14

• 20 X 7 = 1.4

• 20 X 7 = 140

• 20 X 7 = 1400

Multiple Choice

This model represents:

• 18 x 18

• 12 x 12

• 12 x 18

• 22 x 12

Multiple Choice

$$22\ \times\ 18\ =$$  

• not here

• 396

• 36

• 198

Poll

Favorite day of the week:

• Sunday

• Thursday

• Friday

• Saturday

Multiple Choice

Charles worked 16 hours each week at the mall while attending college. He worked a total of 35 weeks and earned 8 an hour. How much money did Charles make over all the weeks?

• $128

• $560

• $4,380

• $4,480

Multiple Choice

There are 156 children and five adults going. If one van can hold nine passengers, how many vans will they need so that everyone will get to go to the zoo?

• 16

• 17

• 18

• 19

Poll

Which super power would you rather have?

• super strength

• flying

• super speed

• invisibility

• super stretch

Multiple Choice

Jena has 356 colored slimes. She is making friendship slime. To make each slime, she needs nine pinches of borax. What is the greatest number of slimes can she make?

• 38 slimes

• 39 slimes

• 36 slimes

• 40 slimes