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Khan Academy offers free, world-class math education for anyone, anywhere.

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Learn algebra—variables, equations, functions, graphs, and more.

Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of …

This Arithmetic course is a refresher of place value and operations (addition, subtraction, division, multiplication, and exponents) for whole numbers, fractions, decimals, and integers. If you are …

Khan Academy offers comprehensive Calculus 1 resources including lessons, practice problems, and videos for students to learn at their own pace.

Learn seventh grade math—proportions, algebra basics, arithmetic with negative numbers, probability, circles, and more. (aligned with Common Core standards)

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Old version of our Class 8 course (may include outdated content).

Learn fourth grade math—arithmetic, measurement, geometry, fractions, and more. This course is aligned with Common Core standards.