Read this page. This article points out various conventions used in algebra when writing variable expressions, such as always putting a numerical coefficient first and omitting 1 in front of a variable. Use the examples provided as a guide to practice identifying different parts of algebraic expressions. Click on the "new problem" button at the end of the page to try a practice problem. After answering the problem, click on the "check your answer" button. Continue this process by clicking on "new problem," and solve 10 problems. You can also create a worksheet of 10 problems by clicking on the button at the bottom of the page titled "Click Here for a Randomly Generated Worksheet and Answers." The answers will be provided at the end of the worksheet.