Round all numbers to 3 signficant figures for Engineering Notation and to 4 signficant figures for Scientific Notation.

Example: 45,620 in scientific notation would be written as 4.562e4 and in engineering notation would be written as 45.6e3.

1. Write 4,200 in Scientific Notation with 4 signficant figures.

2. Write 12,375 in Engineering Notation. Round to 3 significant figures.

3. Write 12,650,000,000 in Scientific Notation. Round to 4 significant figures.

4. Write 0.00006441 in Engineering Notation. Round to 3 significant figures.

5. Write 0.00060303 in Scientific Notation. Round to 4 significant figures.

6. Write 4,200 in Engineering Notation with 3 signficant figures

7. Write 0.034576 in Scientific Notation. Round to 4 significant figures.

8. Write 0.000067851 in Engineering Notation. Round to 3 significant figures.

9. Write 0.002035 in Engineering Notation. Round to 3 significant figures.

10. Write 12,375 in Scientific Notation. Round to 4 significant figures.

11. Write 0.00006441 in Scientific Notation. Round to 4 significant figures.

12. Write 504,894 in scientific notation. Round to 4 significant figures

13. Write 0.00060303 in Engineering Notation. Round to 3 significant figures.

14. Write 0.0020354 in Scientific Notation. Round to 4 significant figures.

15. Write 0.000067851 in Scientific Notation. Round to 4 significant figures.

16. Write 0.900000002 in Engineering Notation. Round to 3 significant figures.

17. Write 504,894 in engineering notation. Round to 3 significant figures.

18. Write 12,650,000,000 in Engineering Notation. Round to 3 significant figures.

19. Write 0.034576 in Engineering Notation. Round to 3 significant figures.

20. Write 0.900000002 in Scientific Notation. Round to 4 significant figures.