166 HotTopics
33 ExercisesIdentify each number as very large or very small. 1.
0.000034 2. 83,900,000 3. 0.000245 4. 302,000,000,000
Write each number in scientific notation. 5. 420,000 6.
804,000,000 7. 30,000,000 8. 13,060,000,000,000 9. 0.00037 10.
0.0000506 11. 0.002 12. 0.000000005507
Write each number in standard form. 13. 2.4 10 7 14. 7.15 10 4
15. 4.006 10 10 16. 8 10 8 17. 4.9 10 -7 18. 2.003 10 -3 19. 5 10
-5 20. 7.0601 10 -10
21. Which of the following expresses the number 5,030,000 in
scientific notation?
A. 5 10 6 B. 5.03 10 6 C. 5.03 10 -6 D. 50.3 10 5 22. Which of
the following expresses the number 0.0004 in
scientific notation? A. 4 10 4 B. 0.4 10 -3 C. 4 10 -4 D. 4 10
-3 23. Which of the following expresses the number 3.09 10 7 in
standard form? A. 30,000,000 B. 30,900,000 C. 0.000000309 D.
3,090,000,000 24. Which of the following expresses the number 5.2
10 -5 in
standard form? A. 0.000052 B. 0.0000052 C. 520,000 D. 5,200,000
25. When written in scientific notation, which of the following
numbers will have the greatest power of 10? A. 93,000 B. 408,000
C. 5,556,000 D. 100,000,000
33
SC
IEN
TIF
IC N
OTA
TIO
N
144_173_G8C3_891508.indd 166144_173_G8C3_891508.indd 166 8/24/08
1:01:41 PM8/24/08 1:01:41 PM
