1. E 9

3. 10 2
3.64 times 10 5

5. 5.2 × 10 3
8 × 10 9
4.391 × 10 −2

6. 6.97 × 10 9

7. from scientific notation to regular notation
The reverse:
from scientific notation to regular notation
Write 5.23 × in regular notation.

8. E 9
6.97 × 10 9

11. Write 3.4 × 10 5 in regular notation.

12. Why would a scientist sometimes write 3
Why would a scientist sometimes write 3.0 × instead of just 3 × ?

13. How would we write 6,235,456,924 in scientific notation if we are using:
one significant figure?
two significant figures?
five significant figures?

14. Write 2.64 × 10 8 in regular notation.