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Created by the people. Each section has solvers calculators , lessons, and a place where you can submit your problem to our free math tutors. To ask a question , go to a section to the right and select "Ask Free Tutors". Most sections have archives with hundreds of problems solved by the tutors.

Lessons and solvers have all been submitted by our contributors! Numeric Fractions Decimal numbers, power of 10, rounding Operations with Signed Numbers Exponents and operations on exponents Divisibility and Prime Numbers Roman numerals Inverse operations for addition and multiplication, reciprocals Evaluation of expressions, parentheses.

Square root, cubic root, N-th root Negative and Fractional exponents Expressions involving variables, substitution Polynomials, rational expressions and equations Radicals -- complicated equations involving roots Quadratic Equation Inequalities, trichotomy Systems of equations that are not linear. Conic sections - ellipse, parabola, hyperbola Sequences of numbers, series and how to sum them Probability and statistics Trigonometry Combinatorics and Permutations Unit Conversion. Geometric formulas Angles, complementary, supplementary angles Triangles Pythagorean theorem Volume, Metric volume Circles and their properties Rectangles.

Length, distance, coordinates, metric length Proofs in Geometry Bodies in space, right solid, cylinder, sphere Parallelograms Points, lines, angles, perimeter Polygons Area and Surface Area.

Easy, very detailed Voice and Handwriting explanations designed to help middle school and high school math students. Lessons discuss questions that cause most difficulties. Word Story Problems Solve and Practice word problems. Multiplication and Division Word Problems Order of Operations Graphing and Writing Integers Opposites and Absolute Value Order of Operations with Integers Integer Word Problems Absolute Value with Addition and Subtraction Absolute Value with Multiplication and Division Factors and Primes Multiples and Least Common Multiple Greatest Common Factor Introduction to Fractions Equivalent Fractions Part I Reducing Fractions to Lowest Terms Equivalent Fractions Part II Improper Fractions and Mixed Numbers Comparing Proper Fractions Comparing Mixed Numbers and Improper Fractions Comparing Fractions Word Problems Adding and Subtracting Like Fractions Adding and Subtracting Unlike Fractions Adding Mixed Numbers Subtracting Mixed Numbers Multiplying Mixed Numbers Dividing Mixed Numbers Converting Decimals to Fractions Converting Fractions to Decimals Decimal Word Problems Estimating Sums and Differences of Decimals Adding and Subtracting Decimals Word Problems Multiplying Decimals by Whole Numbers Multiplying Decimals by Decimals Dividing Decimals by Whole Numbers Dividing Decimals by Decimals Multiplying and Dividing Decimals Word Problems Powers of 10 Simplifying Use this calculator if you only want to simplify, not solve an equation.

Expression Factoring Factors expressions using 3 methods. Factoring and Prime Factoring Calculator. Consecutive Integer Word Problems.

Simplifying and Solving Equations with Multiple Signs. Negative Exponents of Numbers. Negative Exponents of Variables. Negative Exponents in Fractions. Factoring a Difference Between Two Squares. Solve Using the Quadratic Formula. Reading the Coordinates of Points on a Graph. Determining the Slope of a Line. Determining x and y Intercepts of a Line. Algebra Help This section is a collection of lessons, calculators, and worksheets created to assist students and teachers of algebra. Lessons Explore one of our dozens of lessons on key algebra topics like Equations , Simplifying and Factoring.

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