Eighth grade math lessons

415 skills 77 lessons

Brush up on important topics with IXL’s eighth grade math lessons! Once you're ready, start practicing what you've learned in one of IXL's skills.

Integers

  1. Integers
  2. Additive inverses
  3. Adding and subtracting integers
  4. Multiplying and dividing integers

Rational and irrational numbers

  1. Rational numbers
  2. Adding and subtracting rational numbers
  3. Multiplying and dividing rational numbers
  4. Irrational numbers
  5. Pi

Exponents, scientific notation, and roots

  1. Exponents
  2. Properties of exponents
  3. Scientific notation
  4. Adding and subtracting numbers in scientific notation
  5. Multiplying and dividing numbers in scientific notation
  6. Square roots
  7. Cube roots

Proportional relationships

  1. Proportional relationships
  2. Constant of proportionality

Percents

  1. Percents
  2. Simple interest
  3. Percent change

Two-dimensional figures

  1. Parts of a circle
  2. Area of circles
  3. Circumference of circles
  4. Complementary angles
  5. Supplementary angles
  6. Adjacent angles
  7. Vertical angles
  8. Transversals of parallel lines
  9. Interior angles of triangles
  10. Exterior angles of triangles
  11. The Pythagorean theorem
  12. The converse of the Pythagorean theorem
  13. Distance formula

Transformations, congruence, and similarity

  1. Transformations
  2. Translations
  3. Reflections
  4. Rotations
  5. Dilations
  6. Congruence
  7. Similarity
  8. Similar triangles

Three-dimensional figures

  1. Surface area formulas
  2. Volume formulas
  3. Volume of prisms
  4. Volume of cylinders
  5. Volume of pyramids
  6. Volume of cones
  7. Volume of spheres

Expressions

  1. Writing algebraic expressions
  2. Evaluating expressions
  3. Simplifying expressions
  4. The distributive property
  5. Expanding expressions
  6. Factoring expressions

Equations and inequalities

  1. Solving equations
  2. Multi-step equations
  3. Equations with infinitely many or no solutions
  4. Solving inequalities

Linear equations

  1. Linear equations
  2. Slope
  3. Slope-intercept form
  4. Point-slope form
  5. Standard form of linear equations
  6. Equations of parallel and perpendicular lines
  7. Systems of equations

Functions

  1. Relations and functions
  2. Independent and dependent variables
  3. Linear functions
  4. Domain and range

Data and graphs

  1. Box and whisker plots
  2. Dot plots
  3. Histograms
  4. Scatter plots
  5. Correlation
  6. Line of best fit
  7. Two-way tables