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www.khanacademy.org

Khan Academy

With a library of over 3,000 videos covering everything from arithmetic to physics, finance, and history and hundreds of skills to practice, we're on a mission to help you learn what you want, when you want, at your own pace.
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#1 in Algebra, #1 in Calculus, #1 in Homeschooling, #1 in Khan Academy, #1 in Math Resources, #1 in Online Education, #1 in Online Learning, #3 in E Learning, #3 in Lectures, #3 in Online Courses
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