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Learn math from kindergarten to college with Khan Academy. Explore topics such as arithmetic, algebra, geometry, calculus, statistics, and more with videos, practice problems, and quizzes.
- Measurement 2nd Grade
Measurement 2nd Grade - Math | Khan Academy
- Logarithms Algebra 2
Logarithms are the inverses of exponents. They allow us to...
- Geometry 7th Grade
Geometric shapes are all around us. The world is built with...
- Calculus 2
Khan Academy is a nonprofit with the mission of providing a...
- Volume 5th Grade
Looking to become a volume virtuoso? This unit has you...
- Kindergarten
Learn kindergarten math—counting, basic addition and...
- Geometry (All Content)
Learn geometry—angles, shapes, transformations, proofs, and...
- Patterns Pre-algebra
Learn for free about math, art, computer programming,...
- Measurement 2nd Grade
- Algebra foundations. Overview and history of algebra: Algebra foundations Introduction to variables: Algebra foundations Substitution and evaluating expressions: Algebra foundations.
- Solving equations & inequalities. Linear equations with variables on both sides: Solving equations & inequalities Linear equations with parentheses: Solving equations & inequalities Analyzing the number of solutions to linear equations: Solving equations & inequalities.
- Working with units. Rate conversion: Working with units Appropriate units: Working with units Word problems with multiple units: Working with units.
- Linear equations & graphs. Two-variable linear equations intro: Linear equations & graphs Slope: Linear equations & graphs Horizontal & vertical lines: Linear equations & graphs.
- Decimal place value. Decimal place value intro: Decimal place value Decimals on the number line: Decimal place value Decimals in expanded form: Decimal place value.
- Add decimals. Common fractions and decimals: Add decimals Adding decimals intro: Add decimals Adding decimals (tenths): Add decimals. Adding decimals (hundredths): Add decimals.
- Subtract decimals. Subtracting decimals intro: Subtract decimals Subtracting decimals (tenths): Subtract decimals Subtracting decimals (hundredths): Subtract decimals.
- Add and subtract fractions. Strategies for adding and subtracting fractions with unlike denominators: Add and subtract fractions Common denominators: Add and subtract fractions Adding and subtracting fractions with unlike denominators: Add and subtract fractions.
Khan Academy offers math courses from Pre-K to college level, as well as test prep, life skills, and other subjects. Learn at your own pace with personalized, standards-aligned, and trusted content powered by GPT-4.
- Proportional relationships. Constant of proportionality: Proportional relationships Compare and interpret constants of proportionality : Proportional relationships Identifying proportional relationships: Proportional relationships.
- Rates and percentages. Rate problems with fractions: Rates and percentages Converting fractions to decimals: Rates and percentages Percent word problems: Rates and percentages.
- Integers: addition and subtraction. Intro to adding negative numbers: Integers: addition and subtraction Adding negative numbers fluently: Integers: addition and subtraction Intro to subtracting negative numbers: Integers: addition and subtraction.
- Rational numbers: addition and subtraction. Absolute value: Rational numbers: addition and subtraction Adding & subtracting negative fractions: Rational numbers: addition and subtraction Adding & subtracting rational numbers: Rational numbers: addition and subtraction.
Learn math skills for fourth grade with interactive lessons, exercises, and quizzes. Topics include place value, fractions, decimals, geometry, measurement, and more.
Khan Academy is your one-stop-shop for practice from arithmetic to calculus. Math worksheets can vary in quality from site to site. Every Khan Academy question was written by a math expert with a strong education background. Math worksheets can have ads or cost money.
