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| Math World - http://mathworld.wolfram.com/ Mathematics form undergraduate to masters levels. Articles and explanations of mathematics problems. |

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| ChiliMath - Free Math Help - http://chilimath.com Offers math lessons focusing on key topics usually covered in a regular high school algebra class. |

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| Calculators.org - http://www.calculators.org/ Mathematics learning guide offering a wealth of advice and many online calculators which help students solve problems. |