Pre-algebra - Khan Academy
Learn pre-algebra—all of the basic arithmetic and geometry skills needed for algebra.
Variables & expressions | Pre-algebra | Math | Khan Academy
Up next for you: Parts of algebraic expressions Get 3 of 4 questions to level up!
Preálgebra | Matemáticas por area | Khan Academy
Aprende preálgebra: todas las habilidades fundamentales de aritmética y de geometría necesarias para el álgebra.
Multi-step equations | Pre-algebra | Math | Khan Academy
Equations with variables on both sides: decimals & fractions Get 3 of 4 questions to level up!
Functions and linear models | Pre-algebra | Math | Khan Academy
Up next for you: Evaluate functions Get 3 of 4 questions to level up!
Equations & inequalities introduction | Pre-algebra - Khan Academy
In this topic, we will look at 1- and 2-step equations, as well as expressions and inequalities.
Patterns | Pre-algebra | Math | Khan Academy
Learn patterns in math with Khan Academy's interactive lessons and practice questions, tailored to enhance your understanding and problem-solving skills.
Systems of equations | Pre-algebra | Math | Khan Academy
Up next for you: Solutions of systems of equations Get 3 of 4 questions to level up!
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Ecuaciones, expresiones y desigualdades - Khan Academy
En este tema veremos ecuaciones de uno y dos pasos, así como expresiones y desigualdades.