Learn pre-algebra with essential arithmetic and geometry skills to prepare for algebra.

Learn pre-algebra—all of the basic arithmetic and geometry skills needed for algebra.

Ups. Algo salió mal. Por favor inténtalo otra vez. Oh no, parece que encontramos un error. Necesitas actualiza. Si este problema persiste, avísanos.

Opa! Alguma coisa deu errado. Tente novamente. Ah não, parece que ocorreu um erro. Você precisa atualizar. Se o problema persistir, fale conosco.

죄송합니다. 오류가 발생했습니다. 나중에 다시 시도하세요. 오류가 발생했습니다. 새로 고침 을 하세요. 만약 문제가 지속된다면, 알려 주세요 에 신고하세요.

Learn the basics of algebra—focused on common mathematical relationships, such as linear relationships.

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Learn about exponents, order of operations, and related math concepts through engaging lessons and practice exercises on Khan Academy.

Pre-algebra Algebra basics Math: Illustrative Math-aligned 3rd grade math 4th grade math 5th grade math 6th grade math 7th grade math 8th grade math Algebra 1 Integrated Math 1 Math: …

Mar 15, 2021 · Pre-algebra Arithmetic properties Factors and multiples Reading and interpreting data Measurement Fractions Decimals Negative numbers and coordinate plane Ratios, rates, …