How to piss someone off new-head-mglogo.png Buy Math Goodies Software cart-icon.png Log In IXL Sign Up For Our FREE Newsletter! Enter email to receive math help tips! By signing up, you agree to receive useful information and to our privacy policy Search form Search Search the Site! Search Lessons Worksheets Worksheet Creator Worksheets by Grade Games Articles Glossary Puzzles Calculators Word Problems Webquests Writing Algebraic Expressions Writing Algebraic Expressions Group workProblem: Ms. Jensen likes to divide her class into groups of 2. Use mathematical symbols to represent all the students in her class. Solution: Let g represent the number of groups in Ms. Jensen's class. Then 2 · g, or 2g can represent "g groups of 2 students". In the problem above, the variable g represents the number of groups in Ms. Jensen's class. A variable is a symbol used to represent a number in an expression or an equation. The value of this number can vary (change). Let's lo