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.
Equations & inequalities introduction | Pre-algebra - Khan Academy
Pre-algebra 15 units · 179 skills Unit 1 Factors and multiples Unit 2 Patterns Unit 3 Ratios and rates
Factors and multiples | Pre-algebra | Math | Khan Academy
Understanding and finding factors and multiples. After these videos, you'll be ready for fractions.
Functions and linear models | Pre-algebra | Math | Khan Academy
Up next for you: Evaluate functions Get 3 of 4 questions to level up!
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.
Multi-step equations | Pre-algebra | Math | Khan Academy
Equations with variables on both sides: decimals & fractions Get 3 of 4 questions to level up!
Ratios and rates | Pre-algebra | Math | Khan Academy
Pre-algebra 15 units · 179 skills Unit 1 Factors and multiples Unit 2 Patterns Unit 4 Percentages
Ecuaciones, expresiones y desigualdades - Khan Academy
En este tema veremos ecuaciones de uno y dos pasos, así como expresiones y desigualdades.