Khan Academy: Writing Basic Expressions With Variables

Practice writing basic algebraic expressions to model real-world situations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice writing basic algebraic expressions to match verbal descriptions of mathematical operations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Learn how to simplify expressions that have variables. This site offers a variety of video lessons, from a teacher and several students, showing step-by-step solutions to twenty-four different expressions.

Practice writing slightly more complex algebraic expressions to model real-world situations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

In this exercise, students practice writing expressions with variables. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

In this exercise, students practice writing expressions with variables and parentheses. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

The video uses examples to describe how to write an expression from a word problem.

Factor expressions like 3x-9 by applying the distributive property. (All expressions in this exercise are linear binomials.) Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...

Activity provides questions that test understanding of how to translate expressions with parentheses. Immediate feedback is given and hints or a video are available if needed.

In this video lesson students learn to write and solve linear inequalities.