Multiplying by 10 and 100
Multiplying by Multiples of 10
Multiplying by Multiples of 10
Problem Solving on Multiplying by Multiples of 10
Problem Solving on Multiplying by Multiples of 10
2

9 X 20

What is 180?

2

9 x 80

What is 720

2

4 x 400

1,600

2

A store sells crayons in packs of 40. If Lucas buys 8 packs, how many crayons does he have?

320 crayons

2

A school prints 60 worksheets for each class. There are 9 classes. How many worksheets are printed?

540 worksheets

5

7 X 40

What is 280

5

8 x 80

What is 640?

5

9 x 300

2,700

5

A printing press prints 40 pages in one cycle. How many pages does it print in 9 cycles?

360 cycles

5

A bookstore orders 70 boxes of books. Each box contains 7 books. How many books arrive?

490

10

A store sells pencils in packs of 10. If Mia buys 14 packs, how many pencils does she have?

140

10

There are 4 students in a small class. Each student brought $50 for a field trip to Denver. How much money do they have combined?

$200

10

Last year, 4th graders collected 700 cans of food. This year they want to collect 8 times as many cans. How many cans do they hope to collect?

560 cans

10

Jean saves $7 each week. How much money she will have saved in 40 weeks.

$280

10

There are 3 performances of a play. 400 tickets were sold for each play. How many tickets have been sold.

1,200 tickets

15

A farmer plants 30 rows of carrots. Each row has 6 seeds. How many seeds are planted in total? 

180 seeds

15

Which is greater: 4 x 80 or 2 x 400?

2 x 400

15

Which is lesser: 7 x 70 or 60 x 8?

7 x 70

15

An adult female bald eagle has a wingspan that is about 7 feet long. If there are 80 inches in one foot, how long would a female bald eagles wingspan is in inches?

560 inches

15

Ellie said that the product of 200 and 6 is 1,200. Is she correct? 

Yes

20

7 x 80

560

20

The music teacher has 5 packages of recorders. There are 30 recorders in each package. How many recorders does the music teacher have?

150 recorders

20

Each section of a theater has the same number of seats. There are about 30 seats in each section. How many seats are in 6 sections?

180 seats

20

A library has 120 shelves, each holding 7 books. How many books can the library hold?

840

20

A farmer buys 25 bags of soil. Each bag contains 20 pounds. How many pounds of soil is that?

500

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