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All math courses

10 free courses, in the order you learn them: from a refresher on the basics to calculus and statistics. Start at the beginning or jump straight to the one you need.

  1. Math basics

    Elementary math review: multi-digit operations, multiplication facts, long division, units, perimeter and area.

    Review, all ages 6 lessons about 1 hour

  2. Pre-algebra

    Integers, fractions, exponents, percentages, ratios and the order of operations.

    Ages 11–14 15 lessons about 2 hours

  3. Algebra 1

    Monomials, polynomials, special products, factoring, rational expressions and linear equations.

    Ages 14–16 18 lessons about 3 hours

  4. Algebra 2

    Inequalities, systems of equations, radicals, quadratic equations and inequalities.

    Ages 15–17 16 lessons about 3 hours

  5. Geometry

    Triangles, quadrilaterals, circles, area, the Pythagorean theorem and similarity.

    Ages 14–16 14 lessons about 3 hours

  6. Coordinate geometry

    The coordinate plane, lines, parabolas, circles, ellipses and hyperbolas.

    Ages 15–17 10 lessons about 2 hours

  7. Trigonometry

    Sine, cosine and tangent, identities, trigonometric equations and solving triangles.

    Ages 16–18 11 lessons about 2 hours

  8. Exponentials and logarithms

    Exponential and logarithmic functions, their properties, equations and inequalities.

    Ages 16–18 9 lessons about 2 hours

  9. Calculus

    Functions, limits, continuity, derivatives, curve sketching and integrals.

    Ages 17–18 and college 12 lessons about 3 hours

  10. Probability and statistics

    Counting, probability, mean, variance and distributions.

    Ages 15–18 and college 10 lessons about 2 hours