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Assignment # _______ Scientific Notation (Part 2) Name _________________________ Standard: NS 1.1 Compare rational numbers in scientific notation Pre-Algebra, Period ________ Date __________________________ Example 1 Write each number in standard form. b. 2.71 x 10–6 a. 8.9 x 105 8.90000 Add zeros while moving decimal point. (Positive exponent? RIGHT) 890,000 Rewrite in standard notation. 000002.71 (Negative exponent? LEFT) 0.00000271 Write each number in standard form. 1. 7.4 x 103 = ________________________ 2. 4.35 x 10–4 = __________________ 3. 5.94 x 107 = ________________________ 4. 7.2 x 10–3 = ___________________ 5. 2.104 x 10–3 = ______________________ 6. 1.2 x 105 = ___________________ 7. 8.071 x 10–2 = ______________________ 8. 1.2 x 107 = ___________________ 9. 13.064 x 10–4 = ______________________ 10. 5.23 x 107 = _________________ Write each number in scientific notation. 11. 53,300,000 = _______________________ 12. 0.000000702 = _______________ 13. The length of a room is 5.048 x 102 cm. Which number is equivalent to this length? A 0.005048 cm B 0.05048 cm C 504.8 cm D 504,800 cm 14. What is 0.00972 written in scientific notation? A 9.72 x 10–2 B 9.72 x 10–3 C 9.72 x 10–4 D 9.72 x 10–5 15. Which number is equivalent to 7.21 x 10–3? A 0.0721 B 0.00721 C 0.721 16. In the United States, 15,000,000 households use private wells for their water supply. Write this number in scientific notation. D 0.000721 17. The United States has a total of 1.2916 x 107 acres of land reserved for state parks. Write this number in standard form. 18. The mass of Jupiter is about 1.9 x 1027 kilograms. Write this number in standard form. Evaluate the expression. 20. 8–2 = 21. 190 = 1 3 23. 5 24. 73 = 2 4 25. 3 27. 5–3 = 28. 4–3 = 19. 1551 = 29. 1,2340 = 3 3 22. 5 26. 2–4 = 30. 83 =