Sal works through 80 questions taken from the California Standards Test for Algebra II. Good place to review the major topics in Algebra II even if you're not in California. Many of these topics are taugt in more depth in the 'Algebra' playlist.
Arithmetic - 36 Lectures Available
The most basic of the math playlists. Start here if you have very little background in math fundamentals (or just want to make sure you do). After watching this playlist, you should be ready for the pre-algebra playlist.
Sal works through the problems from the CA Standards released questions:
http://www.cde.ca.gov/ta/tg/sr/documents/rtqalg1.pdf . Good videos to review Algebra I (The 'Algebra I Worked Examples' playlist is more comprehensive and should probably be watched first).
I am going to work through every problem in the College Board 'Official SAT Study Guide.' You should take the practice tests on your own, grade them and then use these videos to understand the problems you didn't get or review. Have fun!
Videos on the causes and effects of the credit crisis/crunch.
Pre-algebra - 23 Lectures Available
Videos on pre-algebra. Should be ready for the 'Algebra' playlist if you understand everything here.
Videos on the Geithner Plan to solve the banking crisis.
Videos on trigonometry. Watch the 'Geometry' playlist first if you have trouble understanding the topics covered here.
Sal works through tbe 249 problem solving (math) questions in the official GMAC GMAT book.