1. Scientific Notation

2. 210,000,000,000,000,000,000,000 miles (22 zeros) This number is written in standard form. When numbers get this large, it is easier to write them in scientific notation. How wide is our universe?

3. Scientific Notation A number is expressed in scientific notation when it is in the form a x 10 n where a is between 1 and 10 and n is an integer

4. Partner Talk Determine which ones are in Scientific Notation. 0.4 x 10 6 1.3 x 10 3 10 x 10 7 7.45 x 10 8 1 x 10 -3 5.0 x 10 - 5

5. Writing Numbers in Scientific Notation a. 40,000 b..000137c. 4,030 d. 0.028 e. 78f. 0.548

6. a. 6.73 x 10 6 Is this going to be a big or small number?

7. b. 5.925 x 10 2 c. 5.0 x 10 8 Express in Standard Form

8. Is this going to be a big or small number? d. 2.4 x 10 -3

9. e. 6.832 x 10 -5 f. 3.2 x 10 -1 Express in Standard Form

10. g.Multiply 3 x 10 -7 and 9 x 10 3 Multiply With Scientific Notation

11. g.Multiply 3 x 10 -7 and 9 x 10 3 Multiply With Scientific Notation You try… 4 x 10 4 and 6 x 10 6