Here is a basic video on scientific notation. The presenter defines scientific notation for very large and very small numbers. Then he shows how to convert numbers to scientific notation, and how to do the reverse by converting from...

The video quickly reviews the definition of scientific notation, and then demonstrates how to multiply two numbers in scientific notation together and how to rewrite the final answer if necessary. It does not show an example...

This presentation takes the topic of scientific notation past the basics to look at some more complicated problems of simplifying numbers in scientific notation. Specifically, they cover multiplying a number in scientific notation by a...

Sal instructs the class on calculating an average using a real-life example of exam scores. He further demonstrates how to calculate what future scores would be needed to attain the desired average score by the end of the term.

This video provides a reasonable explanation for blossoming mathematicians, explaining the difference between average and central tendency, as well as arithmetic mean, median, and mode. Those who haven't grasped these concepts in algebra...