Powers of 10
Terminology
Multiplying with Exponents
Word Problems
Multiplication and Area
50

25 x 10

250

50

What do we call the numbers that we multiply together in a multiplication problem?


EX)  _________ x ___________

Factors

50

Solve:  52

25

50

Keyla collected 12 coins each day. How many coins did she collect in 2 days? Give the multiplication sentence with the answer  

2 x 12 = 24 coins

50

Estimate  29 x 21

30 x 20 = 600

100

345 x 10

3,450

100

What do we call the answer to a multiplication problem?

Product

100

Solve:  63

216

100

5 athletes ran 3 laps each. How many laps were run in all by the athletes? Give the multiplication sentence with the answer 

5 x 3 = 15

100

Estimate:  134 x 56

100 x 60 = 6,000

200

234 x 100

23,400

200

What is the formula for area?

Length x Width or L x W

200

Solve:  102

100

200

Aiden, Lila, and Mrs. Signes each taught 2 online class. How many classes did they teach altogether? Give the multiplication sentence with the answer 

3 x 2 = 6

200

Multiply:  45 x 23

1,035

300

450 x 100 

45,000

300

(Complete the phrase) When a number shifts to the left on a place value chart....

Its value increases 10 times, or its value increases by a power of 10.

300

Solve:  103

1,000

300

19 students won 2 free ice creams from the Snack Shack. How many ice creams were won?  Give the multiplication sentence with the answer.

19 x 2 = 38 ice creams

300

Multiply:  675 x 900

607,500

400

198 x 1,000

198,000

400

How do we label area problems?  What type of units?

Square units or units squared
400
Solve:  81 x 102

8,100

400

Three people showed up to the park each day of the week. How many people showed up to the park after 2 weeks?  Give the multiplication sentence with the answer.

(Hint*** How many days are in a week?  In 2 weeks?)

3 x 14 = 42 people

400

Multiply: 174 x 82 

14,268

500

900 x 1,000

900,000

500

What do we call the small number 2 next to the larger number 4 in:  42 . (what is the name of the term)

Exponent

500

Solve:  765 x 103

765,000

500

18 dogs have 16 bones each. How many bones are there in all?  Give the multiplication sentence with the answer

18 x 16 = 288 bones

500

Multiply:  863 x 137

118, 231

600

2300 x 1,000

2,300,000

600

What do we call the larger number next to the small 2 in 4(what is the term)

Base

600

Solve:  2,000 x 102

200,000

600

An auditorium has 35 rows.  Each row has 26 seats.  How many seats are in the auditorium?

910 seats

600

A floor has a length of 84 inches and a width of 67 inches.  What is the area of the floor?

5,628 square inches

700

798,000 x 100

79,800,000

700

Solve:  3,040 x 103

3,040,000

700

There were 219 adults at Mr Pizzi's party and each adult gave a $52 gift. How much money did Mr. Pizzi get as gifts from his birthday party?  Give the multiplication sentence with the answer

219 x $52 = $11,388

700

A backyard has a length of 34 feet and a width of 122 feet.  What is the area?  


Bonus:  What is the perimeter?

Area:  4,148 square feet


Perimeter:  312 feet



800

9,082 x 100

908,200

800

Fill in the blank:


450 x _____ = 450,000

Either 1,000 or 103

800

There are 566 students in Frost Hills Elementary School.  There was a canned food drive, and each student brought in 155 cans of vegetables.  How many cans of vegetable did Frost Hills Elementary have in all?

566 x 155 = 87,730 cans

800

A square has a width of 237 cm and a length of 234 cm.  What is the area?

55,458 square cm

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