https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:foundation-algebra/x2f8bb11595b61c86:intro-variables/v/variables-and-expressions-1 2023-06-11T20:09:24.00592199Z Evaluating an expression with one variable In this math lesson, we explore the expression 5 t plus 3 to calculate the cost of participating in a hospital raffle fundraiser. By evaluating the expression for different values of t, the number of tickets purchased, we find the costs for buying 1, 8, and 10 tickets, which are 8, 43, and 53 dollars, respectively. Sal Khan video https://cdn.kastatic.org/googleusercontent/uIAXUtdyJRfQMcSwOvbNBBbvYyFxGpIsznKE9aM5HHsUTWfdzOTNmL_BQHea9f9oD_NaMb5EtADwbhHP-x3Orao Evaluating an expression with one variable In this math lesson, we explore the expression 5 t plus 3 to calculate the cost of participating in a hospital raffle fundraiser. By evaluating the expression for different values of t, the number of tickets purchased, we find the costs for buying 1, 8, and 10 tickets, which are 8, 43, and 53 dollars, respectively. https://cdn.kastatic.org/ka-youtube-converted/AJNDeVt9UOo.mp4/AJNDeVt9UOo.mp4 120 Substitution & evaluating expressions https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:foundation-algebra/x2f8bb11595b61c86:intro-variables/e/evaluating_expressions_1 2025-03-28T07:05:36.573142233Z Evaluating expressions with one variable Substitute a whole number into an expression with 1 or 2 operations (addition, subtraction, multiplication, and division), and evaluate. Marcia Lee exercise https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-substitution/v/evaluating-exponent-expressions-with-variables 2023-06-30T02:13:42.781179102Z Evaluating exponent expressions with variables In this math lesson, we learn to evaluate expressions with exponents and variables. We practice substituting values for variables and calculating the results. By mastering this skill, we can solve problems involving exponential expressions, enhancing our understanding of algebra and mathematical concepts. video https://cdn.kastatic.org/ka_thumbnails_cache/ed2fd4cf-265f-4470-94ce-dcb800aba937_1280_720_base.png Evaluating exponent expressions with variables In this math lesson, we learn to evaluate expressions with exponents and variables. We practice substituting values for variables and calculating the results. By mastering this skill, we can solve problems involving exponential expressions, enhancing our understanding of algebra and mathematical concepts. https://cdn.kastatic.org/ka-youtube-converted/9K54G5yeR74.mp4/9K54G5yeR74.mp4 181 Substitution & evaluating expressions https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-substitution/v/evaluating-expressions-5x2 2023-06-30T13:52:18.186404311Z Evaluating expressions like 5x² & ⅓(6)ˣ Evaluating expressions with exponents involves substituting a given value for the variable and following the order of operations. Calculate the exponent first, then perform any multiplication or division. Mastering this skill is essential for solving more complex algebraic problems and understanding mathematical relationships. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/71ba61c7-d195-436a-a95e-abe0f8bfff6f_1280_720_base.png Evaluating expressions like 5x² & ⅓(6)ˣ Evaluating expressions with exponents involves substituting a given value for the variable and following the order of operations. Calculate the exponent first, then perform any multiplication or division. Mastering this skill is essential for solving more complex algebraic problems and understanding mathematical relationships. https://cdn.kastatic.org/ka-youtube-converted/ccyZpjKvJV8.mp4/ccyZpjKvJV8.mp4 86 Substitution & evaluating expressions https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-substitution/e/exponents-in-expressions 2022-07-28T09:36:48.454963052Z Variable expressions with exponents Practice evaluating expressions with exponents by substituting values for the variables.  Lindsay exercise https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:foundation-algebra/x2f8bb11595b61c86:intro-variables/a/evaluating-expressions-with-one-variable 2026-06-12T17:50:45.743340147Z Evaluating expressions with one variable A mixture of explanations, examples, and practice problems to have you evaluating expressions with one variable in no time! article