Math Study Guides - SparkNotes
Another math site.
This one covers prealgebra through Calculus BC II. It covers all the formulas, has sample problems and has online tests for each class.
I am more certain than ever that my 3rd grader could probably complete Algebra by the end of 5th grade. He knows 50% of the stuff covered in the prealgebra test already.
I know this is off-topic, but I thought you would like this site: NumberChallenge.com.
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