Pre-algebra

Pre-algebra is the first math course in high school and will guide you through among other things integers, one-step equations, inequalities and equations, graphs and functions, percent, probabilities. We also present an introduction to geometry and right triangles. Learn pre-algebra for free—all of the basic arithmetic and geometry skills needed for algebra. Full curriculum of exercises and videos. This is the property of khanacademy.org and is available for free on their website.