Copyright © The McGraw-Hill Companies, Inc. Permission is granted to reproduce for classroom use. NAME ___________________________________________________ DATE _____________________ PERIOD __________ Lesson 4 Homework Practice Scientific Notation Express each number in standard form. 1. 2.4 × 10 4 24,000 2. 9.0 × 10 3 9000 3. 4.385 × 10 7 43,850,000 4. 1.03 × 10 8 103,000,000 5. 3.05 × 10 2 305 6. 5.11 × 10 10 51,100,000,000 7. 6.000032 × 10 6 6,000,032 8. 1.0 × 10 1 10 9. 8.75 × 10 5 875,000 10. 8.49 × 10 -2 0.0849 11. 7.1 × 10 -6 0.0000071 12. 1.0 × 10 -3 0.001 13. 4.39 × 10 -7 0.000000439 14. 1.25 × 10 -4 0.000125 Express each number in scientific notation. 15. 40,000 4.0 × 10 4 16. 16 1.6 × 10 1 17. 876,000,000 8.76 × 10 8 18. 4500 4.5 × 10 3 19. 151 1.51 × 10 2 20. 0.00037 3.7 × 10 -4 21. 83,000,000 8.3 × 10 7 22. 919,100 9.191 × 10 5 23. 5,000,000,000,000 5.0 × 10 12 24. 0.13 1.3 × 10 -1 25. 0.0000007 7.0 × 10 -7 26. 0.0067 6.7 × 10 -3 Order each set of numbers from least to greatest. 27. 7.35 × 10 4 , 1.7 × 10 -6 , 8.26 × 10 3 , 9.3 × 10 -2 28. 0.00048, 4.37 × 10 -4 , 4.02 × 10 -3 , 0.04 29. Every minute, 840,000,000,000 drops of water flow over Niagara Falls. Write this number in scientific notation. 8.4 × 10 11 drops 30. A scientist said the mass of a sample was 0.00000017 kg. Write this measurement in scientific notation. 1.7 × 10 -7 kg 1.7 × 10 -6 , 9.3 × 10 -2 , 8.26 × 10 3 , 7.35 × 10 4 4.37 × 10 -4 , 0.00048, 4.02 × 10 -3 , 0.04 Math Accelerated • Chapter 4 Powers and Roots