Please do not give up. I have some easy and hard stuff in this page. Work on the easy stuff and someday you will understand the hard stuff. You can be very proud of yourself if read some of these pages. Recall one mL is about 20 drops of water.
Scientific notation is easy.
Notice there are eight 10s. 10 to the eighth is very familiar to any bacteriologist as a bacterial culture having that titer is just barely turbid. Some Rules to Guide your Experiments.