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(2) Number, operation, and quantitative reasoning. The student adds, subtracts, multiplies, or divides to solve problems and justify solutions. The student is expected to:
(A) represent multiplication and division situations involving fractions and decimals with models, including concrete objects, pictures, words, and numbers;
(B) use addition, subtraction, multiplication, and division to solve problems involving fractions and decimals;
(D) use division to find unit rates and ratios in proportional relationships such as speed, density, price, recipes, and student-teacher ratio;
(3) Patterns, relationships, and algebraic thinking. The student solves problems involving direct proportional relationships. The student is expected to:
(A) estimate and find solutions to application problems involving percent; and
(B) estimate and find solutions to application problems involving proportional relationships such as similarity, scaling, unit costs, and related measurement units.
(12) Probability and statistics. The student uses measures of central tendency and variability to describe a set of data. The student is expected to:
(A) describe a set of data using mean, median, mode, and range
(G) determine the reasonableness of a solution to a problem.