Learn pre-algebra—all of the basic arithmetic and geometry skills needed for algebra.

The Algebra 1 course, often taught in the 9th grade, covers Linear equations, inequalities, functions, and graphs; Systems of equations and inequalities; Extension of the concept of a …

Pre-algebra Learn pre-algebra—all of the basic arithmetic and geometry skills needed for algebra.

Learn the basics of algebra—focused on common mathematical relationships, such as linear relationships.

Learn eighth grade math—functions, linear equations, geometric transformations, and more. (aligned with Common Core standards)

Created by experts, Khan Academy’s library of trusted, standards-aligned practice and lessons covers math K-12 through early college, grammar, science, history, AP®, SAT®, and more.

Unit 9: Relating algebra and geometry Unit mastery: 0% Distance and midpoints Standard equation of a circle Expanded equation of a circle

Linear equations with variables on both sides Learn Why we do the same thing to both sides: Variable on both sides Intro to equations with variables on both sides Equations with variables …

The core idea in algebra is using letters to represent relationships between numbers without specifying what those numbers are! Let's explore the basics of communicating in algebraic …

This topic isn't algebra, but it is a survey of all of the most important pre-algebra skills you need to really digest algebra. These skills also tend to be pretty important in life in general!