Level I math lessons

361 skills 72 lessons 346 videos

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

Integers

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

Decimals

  1. Adding decimals
  2. Subtracting decimals
  3. Multiplying decimals by powers of 10
  4. Multiplying decimals by whole numbers
  5. Multiplying decimals
  6. Dividing decimals by powers of 10
  7. Dividing decimals by whole numbers
  8. Dividing decimals

Rational numbers

  1. Rational numbers
  2. Comparing rational numbers
  3. Adding and subtracting rational numbers
  4. Multiplying and dividing rational numbers

Exponents and powers of 10

  1. Exponents
  2. Powers of 10

Properties and mixed operations

  1. The distributive property
  2. Order of operations
  3. PEMDAS

Percents, ratios, and rates

  1. Percents
  2. Ratios
  3. Unit rates
  4. Unit rates with fractions
  5. Simple interest
  6. Percent change

Proportions and proportional relationships

  1. Proportions
  2. Proportional relationships
  3. Constant of proportionality

Algebra

  1. Expressions and equations
  2. Writing algebraic expressions
  3. Evaluating expressions
  4. Equivalent expressions
  5. Simplifying expressions
  6. Expanding expressions
  7. Factoring expressions
  8. Solving equations
  9. Multi-step equations
  10. Independent and dependent variables
  11. Inequalities on a number line
  12. Solving inequalities

Geometry

  1. Area of triangles
  2. Area of parallelograms
  3. Area of rhombuses
  4. Area of trapezoids
  5. Parts of a circle
  6. Area of circles
  7. Circumference of circles
  8. Complementary angles
  9. Supplementary angles
  10. Adjacent angles
  11. Vertical angles
  12. Nets
  13. What is surface area?
  14. Surface area formulas
  15. Volume formulas
  16. Volume of rectangular prisms
  17. Volume of prisms
  18. Volume of cylinders
  19. Volume of pyramids
  20. Cross sections
  21. Triangle inequality theorem

Statistics and probability

  1. Mean, median, mode, and range
  2. Mean absolute deviation
  3. Box and whisker plots
  4. Dot plots
  5. Histograms
  6. Statistical questions
  7. Probability
  8. Compound probability