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Powers of 10's and Estimating with Multiplicaiton

Total questions: 17

Worksheet time: 1hrs 25mins

Name
Class
Date
1.

13 x _________ = 13,000

a)

10

b)

100

c)

1000

d)

10000

2.

Nellie says that 60 x 1,000 is 6,000 because there are three zeros in 1,000. Kara says that 60 x 1,000 = 60,000. Who is correct?

a)

Nellie

b)

Kara

c)

Both

3.

_______ = 382 x 104

a)

3820

b)

38200

c)

382000

d)

3820000

4.

Which would result in the largest answer?

a)

60 x 106

b)

60 x 102

c)

60 x 104

d)

60 x 103

5.

_______ = 103 X 80

a)

80

b)

800

c)

8000

d)

80000

6.

Which expression is greater?

a)

93 x 103

b)

11 x 104

7.

Which is equivalent to multiplying a number by 104 ?

a)

multiplying by 40

b)

multiplying by 100

c)

multiplying by 1,000

d)

multiplying by 10,000

8.

Is 500 over or under or exactly the estimate of 12 times 53?

a)

Over

b)

Exactly 500

c)

Under

9.

Which does NOT show a reasonable estimate of 24 x 338? (which one is too big)

a)

6000

b)

7000

c)

7500

d)

10000

10.

Lance has 102 packages of sports cards. Each package has 28 cards. Use rounding to estimate. About how many cards does Lance have?

a)

2000

b)

2500

c)

3000

d)

3500

11.

Estimate 180 x 586

a)

120

b)

1200

c)

12,000

d)

120,000

12.

Estimate 300 x 118

a)

300

b)

3000

c)

30000

d)

3,000,000

13.

Estimate 38 x 230

a)

6000

b)

7000

c)

8000

d)

9000

14.

Estimate 854 x 733

a)

63

b)

630

c)

6,300

d)

630,000

15.

What have you liked the most that you have studied in math class so far?

a)

Expressions

b)

Multiplying

c)

Graphing Points

d)

Word problems

16.

If came back to life as an animal, what would it be?

a)

Whale

b)

Penguin

c)

Bear

d)

Horse

17.

What is your favorite thing about school?

a)

Learning

b)

Friends

c)

Teachers

d)

Lunches

e)

Specials