Pre-Algebra
Unit 3: Real Numbers
Scientific Notation
Write each number in scientific
notation.
1. 640,000
Name:
Worksheet 3.6
Write each number in standard
notation.
4. 6.4  105
2. 0.000000456
5. 4.56  10-7
3. 75,430,000,000
6. 7.543  1010
Check yourself: The answers for #1 - 3 match #4 - 6.
Write each number in scientific notation.
7. 0.08
10. 0.000342
8. 5,600
11. 98.7
9. -3,000,000
12. 0.286
Write each number in standard notation.
13. 6.21  108
16. 2.968  100
14. 3  10-3
17. 5.4  10-5
15. -1.21  101
18. -8  104
Answer.
19. The size of the Arctic Ocean is 5.43  106 mi2 and the size of the
Atlantic Ocean is 2.96  107 mi2. Which is larger?
20. The Pacific Ocean is 60,000,000 mi2. What is that in scientific notation?
21. The Indian Ocean is 2.65  107 mi2. What is that in standard notation?