Name
T E K S A.11.A
Date
Class
Practice B
LESSON
7-2
Powers of 10 and Scientific Notation
Find the value of each power of 10.
1. 10
⫺3
4. 10 0
2. 10 5
3. 10 ⫺4
5. 10 7
6. 10 1
Write each number as a power of 10.
8. 0.001
7. 1,000,000
10. 0.00001
9. 0.000001
11. 0.1
12. 0.00000001
Find the value of each expression.
13. 5.02 ⫻ 10
3
14. 603 ⫻ 10 ⫺4
15. 52.8 ⫻ 10
6
16. 5.41 ⫻ 10
17. 0.03 ⫻ 10 ⫺2
⫺3
18. 22.81 ⫻ 10 ⫺6
Write each number in scientific notation.
19. 4500
20. 6,560,000
21. 0.00002
22. 0.00203
Order the list of numbers from least to greatest.
2
⫺3
2
⫺4
⫺1
⫺4
23. 3 ⫻ 10 ; 4.54 ⫻ 10 ; 6.75 ⫻ 10 ; 8.2 ⫻ 10 ; 9 ⫻ 10 ; 6.18 ⫻ 10
24. 5.4 ⫻ 10 ⫺3; 6.2 ⫻ 10 ⫺1; 7.25 ⫻ 10 3; 6.87 ⫻ 10 3; 2.24 ⫻ 10 ⫺1; 6.6 ⫻ 10 ⫺3
25. In 1970, the number of televisions sold in the United States
7
was about 1.2 ⫻ 10 . Write this number in standard form.
26. In 1950, about 3,880,000 households in the United States
had televisions. Write this number in scientific notation.
27. Find the volume of the cube shown at right. Write the
answer in both standard form and in scientific notation.
SMM
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
a107c07-2_pr_TX.indd 47
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Holt Algebra 1
3/30/06 2:53:52 PM
Name
T E K S A.11.A
Date
Class
Practice B
LESSON
7-2
Powers of 10 and Scientific Notation
Find the value of each power of 10.
1. 10
⫺3
0.001
1
4. 10 0
2. 10 5
100,000
5. 10 7
10,000,000
Write each number as a power of 10.
10 6
7. 1,000,000
8. 0.001
10 ⫺5
10. 0.00001
11. 0.1
0.0001
3. 10 ⫺4
10
6. 10 1
10 ⫺3
10 ⫺6
9. 0.000001
10 ⫺1
10 ⫺8
12. 0.00000001
Find the value of each expression.
13. 5.02 ⫻ 10
3
5020
15. 52.8 ⫻ 10
6
52,800,000
16. 5.41 ⫻ 10
0.0003
17. 0.03 ⫻ 10 ⫺2
0.0603
14. 603 ⫻ 10 ⫺4
0.00541
⫺3
18. 22.81 ⫻ 10 ⫺6
0.00002281
20. 6,560,000
6.56 ⫻ 10
Write each number in scientific notation.
19. 4500
4.5 ⫻ 10
2 ⫻ 10
21. 0.00002
3
⫺5
2.03 ⫻ 10
22. 0.00203
6
⫺3
Order the list of numbers from least to greatest.
2
⫺3
2
⫺4
⫺1
⫺4
23. 3 ⫻ 10 ; 4.54 ⫻ 10 ; 6.75 ⫻ 10 ; 8.2 ⫻ 10 ; 9 ⫻ 10 ; 6.18 ⫻ 10
6.18 ⫻ 10
⫺4
; 8.2 ⫻ 10
⫺4
; 4.54 ⫻ 10
⫺3
; 9 ⫻ 10
⫺1
2
; 3 ⫻ 10 ; 6.75 ⫻ 10
2
24. 5.4 ⫻ 10 ⫺3; 6.2 ⫻ 10 ⫺1; 7.25 ⫻ 10 3; 6.87 ⫻ 10 3; 2.24 ⫻ 10 ⫺1; 6.6 ⫻ 10 ⫺3
5.4 ⫻ 10
⫺3
; 6.6 ⫻ 10
⫺3
; 2.24 ⫻ 10
⫺1
; 6.2 ⫻ 10
⫺1
3
; 6.87 ⫻ 10 ; 7.25 ⫻ 10
25. In 1970, the number of televisions sold in the United States
7
was about 1.2 ⫻ 10 . Write this number in standard form.
12,000,000
26. In 1950, about 3,880,000 households in the United States
had televisions. Write this number in scientific notation.
3.88 ⫻ 10 6
3
27. Find the volume of the cube shown at right. Write the
answer in both standard form and in scientific notation.
64,000,000,000 mm 3;
6.4 ⫻ 10 10 mm 3
SMM
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
a107c07-2_pr_TX.indd 47
47
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3/30/06 2:53:52 PM