Convert these numbers from scientific notation to standard form or standard form to scientific notation.
1. 45,000,000
2. 604,000,000,000
3. 6.7 x 108
4. 2.04 x 107
Mar 8­8:39 AM
1
Let's Practice!
Standard Form
Scientific Notation
2,300,000,000
14,500,000
2,300
607,000,000
50,090,000
Mar 4­9:41 AM
2
What did these students do wrong?
3,090,000 = 309 x 104
6,000 = 6 x 3
80,500,000 = 8.5 x 106
75,000 = 753
Mar 4­10:04 AM
3
Go to http://www.cellsalive.com/howbig.htm to see the relative size of a virus.
or http://www.youtube.com/watch?v=1Z53wTtGGA0
Virus
Bacteria
Human Red Blood Cell
Dec 11­10:02 AM
4
0.5 = 5 x 1/10 =
0.05 = 5 x 1/10 x 1/10 =
0.005 = 5 x 1/10 x 1/10 x1/10 =
If only there were away to write 1/10 using exponents!
0.000609= 6.09 x Mar 4­9:52 AM
5
We can write 0.000045 m in scientific notation. 0.000045 m
4.50000 x 10-6 m
-6
4.5 x 10
m
Dec 14­3:55 PM
6