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. Just type in your values. Talk to Splotchy , an artificial intelligence robot with funny voice.
Dumbest things from school essays. Algebra Worksheets at edHelper. Type in a formula, get a nice JPEG picture for your website! Become famous by teaching math. Our algebra tutors solved problems submitted by registered students, wrote lessons , solvers , to be seen by thousands!
They become famous and promote their math sites. Math Makes Sense 6 Morrow, et al. Algebra 1 Carter, et al. Algebra 1 Holliday, et al. Algebra - Concepts and Applications Cummins, et al. Math Power 9 Knill, et al. Algebra 1 Burger, et al. Algebra 1 Larson, et al. Algebra 1 - Concepts and Skills Larson, et al. Algebra - Structure and Method Brown, et al. Algebra 1 Charles, et al. Algebra 1 Wang Algebra 1 Bellman, et al.
Algebra 1 Smith, et al. Algebra 1 Dressler Algebra 1 Saxon Geometry Carter, et al. Geometry Boyd, et al. Geometry - Concepts and Applications Cummins, et al. Geometry Burger, et al. Geometry Larson, et al. Geometry - Concepts and Skills Larson, et al. Geometry Jurgensen, et al. Geometry Charles, et al. Geometry Bass, et al. Algebra 2 Carter, et al. Algebra 2 Holliday, et al. Algebra 2 Burger, et al. Algebra 2 Larson, et al. Math Power 10 Knill, et al. Algebra and Trigonometry - Book 2 Brown, et al.
Algebra 2 Charles, et al. Algebra 2 Wang Algebra 2 Bellman, et al. Algebra 2 with Trigonometry Smith, et al. Algebra 2 Saxon Mathematics 10 Alexander, et al. College Pre-Algebra Bittinger, et al. College Pre-Algebra Lial, et al.
College Pre-Algebra Martin-Gay Introductory Algebra Bittinger, et al. Beginning Algebra Rockswold, et al. Beginning Algebra Martin-Gay Beginning Algebra Miller, et al. Beginning Algebra Lial, et al. Elementary Algebra Larson, et al. Intermediate Algebra Blitzer Intermediate Algebra Rockswold, et al. Intermediate Algebra Dugopolski, et al. Intermediate Algebra Martin-Gay Intermediate Algebra Larson, et al.
Intermediate Algebra Miller, et al. Intermediate Algebra Bittinger, et al. Intermediate Algebra Lial, et al. College Algebra Bittinger, et al. College Algebra Lial, et al. College Algebra Larson, et al. College Algebra Beecher, et al.
Free math lessons and math homework help from basic math to algebra, geometry and beyond. Students, teachers, parents, and everyone can find solutions to their math problems instantly.
Homework Help for Percentages. A percentage represents a fraction with as the denominator. Percentages are written using the percent sign (%). For instance, the fraction 50/ is written as 50%, and the fraction 8/ is written as 8%.
Percent change refers to the amount of increase or decrease given as a percentage. Percent increase is often referred to as a markup, and percent decrease is a discount. Suppose the regular price of an item is $ and it is being sold at 30% off. Homework Sheets. See if you can try to help students focus in on the relationship between both of these skills.