Free Pre-Algebra Content

Whole Numbers

  • Intro to Whole Numbers
  • Addition and Subtraction of Whole Numbers
  • Rounding and Estimating
  • Multiplying Whole Numbers
  • Dividing Whole Numbers
  • Order of Operations


  • Intro to Integers
  • Absolute Value
  • Addition and Subtraction of Integers
  • Multiplying Integers
  • Dividing Integers
  • Algebraic Expressions

Solving Equations

  • Simplifying Expressions
  • Combining Like Terms
  • Addition and Subtraction Properties of Equality
  • Multiplication and Division Properties of Equality
  • Solving Multistep Equations

Fractions and Mixed Numbers

  • Intro to Fractions and Mixed Numbers
  • Simplifying Fractions
  • Adding and Subtracting Fractions
  • Multiplying Fractions
  • Dividing Fractions


  • Decimal Notation
  • Rounding with Decimals
  • Addition and Subtraction of Decimals
  • Multiplication of Decimals
  • Division of Decimals
  • Solving Equations with Decimals

Ratios and Proportions

  • Ratios
  • Rates and Unit Costs
  • Proportions
  • Similar Figures


  • Percents, Fractions, and Decimals
  • Percent Proportions
  • Percent Equations
  • Percent Change
  • Simple Interest
  • Compound Interest

Intro to Geometry

  • Lines and Angles
  • Triangles
  • Pythagorean Theorem
  • Perimeter
  • Circumference
  • Area
  • Volume

Exponents and Polynomials

  • Addition and Subtraction of Polynomials
  • Properties of Exponents
  • Multiplication of Polynomials
  • Factoring
  • Scientific Notations
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