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________
r
LESSON
JA.
Name
Date
Prictice
For use with pages 199—203
j
1. Which expression is not equivalent to
D.ET
Write the expression using only positive exponents.
2. 14
3 9
4. 18
S. ab0
6. 24d’
7. ,n1,r2
Write the expression without using a fraction bar.
1o.o
11.
4
12.
t
4
13.
y
Find the product. Write your answer using only positive exponents.
14. 22°• 22
15. 8 .8_6
16. I2
17. 3w9
19. 14rn”
•
18. 9h2
Copyright © McDougal Ullell/Houghton Muffin Compsny
All rights reserved.
•
5h’°
.
l2
•
6m9
Pre-Aigebra
Chapter 4
Practice Workbook
53
LESSON
[
4.6
Continued
Date
Name
Practice
For use with pages 199—203
20. Scientists have created a 10-nanometer transistor for use in computers. A
nanometer is io meter. What is the length of the transistor in meters?
21. Write the number
as a power of 10 using a negative exponent.
22. A milligram is i0 gram. A kilogram is jQ3 grams. How many times the
mass of a milligram is the mass of a kilogram?
Find the quotient. Write your answer using only positive exponents.
i
23.
26.
a
—20
24.
8a9
14?
27.
“
—15
25.
34u6
19k°
k
w3y13
——-
28. jj
Use a calculator to evaluate the expression. If necessary, round the result to
the nearest thousandth.
29. (6.5i
30. (9.4Y
31.
(7.412
(
54
Pre—Algebra
Chapter 4 PractIce Workbook
Copydght © Mcflougal UneIl/Hougrnon Miffiin Company
All tights reserved.
________
F
LESSON
j1
Name
Date
Practice
For use with pages 204—209
j
Write the number In scientific notation.
1. 1250
2. 205,000
3. 0.0035
4. 0.00058
5. 5,220,000
6. 0.000064
Write the number In standard form.
7. 5.3 X 102
8. 7.2
10. 1.2
)
x
11. 9.45
io5
Complete the statement using
13. 1.8 x 102
1800
15. 6.9
x io
<, >,
0.0068
or
x
x
io—5
x Io)(2.4 x io)
x io—3
12. 6.32
x 106
=.
14. 43,000_4.3
x io
16. 1.8 x i04
0.0018
Find the product. Write your answer in scientific notation.
17. (o x 1o2)(3 x io)
18. (4.5
19. (4
9. 4.3
102
20. (2.5
—
x 1o)(2 x ioj
x 1o_)(5 x io)
)
Copyright © McDougal Uttell/Hougliton Muffin company
All rights reserved,
Pro—Algebra
Chapter 4
Practice Workbook
55
LESSON
[
Name
Date
4.7
Practice
Continued
For use with pages 204—209
(
21. The sun has a diameter of 1.39 X io kilometers. The diameter of Earth is
1.28 x i& kilometers. How many times larger is the sun’s diameter than
the Earth’s diameter? Give your answer in scientific notation.
F
Order the numbers from least to greatest.
22. 2400; 2.5 X 102; 2.3
x io3
24. 0.036; 3.5 X l0_2; 3.7 x 1O
Write the
23. 4.8 X io; 481,000; 4.7 X io
25. 8.3 X i04; 0.0084; 8.2 X io4
number in scientific notation.
26. Volume (in cubic kilometers) of water in Lake Michigan: 4920
k
27. Approximate density (in grams per milliliter) of one helium atom:
0.0001787
Write
the
number
28. Floor
area
In
(in
standard form.
square
meters) of the Sears Tower in Chicago: 4.16 X io
29. Approximate width (in meters) of a United States dollar bill:
6.6294 x 10—2
30. Volume (in
56
cubic
meters) of a mole of helium atoms: 2.1 X io
Pre—Algebra
Chapter 4 Practice Workbook
Copydght © Mcougal Uttell/Houghton Muffin company
All rights reserved.

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