Apply proportions to solve practical problems, including scale drawings. Scale factors shall have denominators no greater than 12 and decimals no less than tenths. (Calculators may be used).
Solve practical problems by using computation procedures for whole numbers, integers, rational numbers, percents, ratios, and proportion. Some problems may require the application of a formula.
Write problems that require establishing a relationship between ratios. (Q2W8)
Write proportions that represent equivalent relationships between two sets. (Q2W8)
Apply proportions to convert units of measurement between the U.S. Customary System and the metric system. Calculators may be used.
Solve a proportion to find a missing term. (Q2W8)
Maintain a checkbook registry for five or fewer transactions.
Write a proportion given the relationship of equality between two rates.
Consumer Applications - 7.4, 8.3b
Compute a discount or markup and the resulting (sale) price for one discount or markup.
Compute the sales tax or tip and resulting total.
Compute the simple interest and new balance earned on an investment or a loan for a given number of years.
Compute the percent increase or decrease for a one-step equation found in a real life situation.
Substitute values for variables in given formulas. For example, use the simple interest formula I = prt to determine the value of any missing variable when given specific information.
Solve practical problems by using computation procedures for whole numbers, integers, fractions, percents, ratios, and proportions. Some problems may require the application of a formula.
Practical problems may include, but not be limited to, those related to economics, sports, science, social sciences, transportation, and health. Some examples include problems involving the amount of a pay check per month, the discount price on a product temperature, simple interest, sales tax and installment buying.
Using 10% as a benchmark, mentally compute 5%, 10%, 15%, or 20% in a practical situation such as tips, tax and discounts.
Solve problems involving tips, tax, and discounts. Limit problems to only one percent computation per problem.
Major Units
Practical Problems involving proportional reasoning - 7.4, 8.3a
Consumer Applications - 7.4, 8.3b
Summary Khan Academy Exercises
Vocabulary
Assessments