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Patterns of x
Estimate and Solve
word problems
area models
100

another way to say 2,600

twenty six hundred

100

6 x 9 

6 x 90 

60 x 90 

6 x 900 

6 x 9,000

72

720

7200

7200

72000

100

82 x 62

5084

100

In one hour, 1,048 cars stopped at a traffic light. What is the best estimate of how many cars will stop in 8 hours?

8,000

100

what are the partial products of 22 x 43?

800, 80, 60, 6 

200

How many hundreds in 

2,700

27 

200

7 x 3 

7 x 30 

7 x 300 

70 x 300

21 

210

2100

21000

200

98 x 47

4606

200

Lacy travels 214 miles every week. What expression shows the best estimate for the number of miles she should travel in nine weeks?

a. 300 x 10

b. 250 x 9 

c. 300 x 9 

d. 200 x 9 

D

200

4 x $543

$2,172

300

Express: 40 x 50

(4 x 10) x (5 x 10)

300

11 x 10 

11 x 20 

11 x 30 

11 x 40 

110

220

330

440

300

78 x 31

2418

300

A black bear has a mass of about 135 kilograms. Which is the best estimate of the mass of 3 black bears?

between 300 and 600 KG

300

3, 608 x 6 

21, 648

400

Express: 50 x 60

(5x10) x (6 x10)

400

9 x 80 

900 x 800 

90 x 800

720

720,000

72000

400

5 x 7032

35,160

400

Season tickets at an amusement park cost $57 per ticket. If someone buys 5 tickets, what will be the total cost? Show you work.

$285

400

partial products of 37 x 26

600, 140, 180, 42

500

3 x 535 = 3 x 500+ 3 x 30 + 3 x 5 

Which property is expressed here?

distributive

500

13 x 20

13 x 200 

130 x 20 

130 x 200

260

2600

2600

26000

500

7 x 83,456

584,192

500

A toy company employee ships 168 jigsaw puzzles on Monday. He ships 175 jigsaw puzzles on Tuesday. Each puzzle weighs 4 pounds. How many pounds do the jigsaw puzzles weigh in all? show you work. 

1,362 pounds

500

partial and final product of 45 x 34

1200, 160, 150, 20

product: 1530

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