(2) Number, operation, and quantitative reasoning. The student adds, subtracts, multiplies, and divides to solve problems and justify solutions. The student is expected to:
(A) model addition and subtraction situations involving fractions with objects, pictures, words, and numbers;
(B) use addition and subtraction to solve problems involving fractions and decimals;
(C) use multiplication and division of whole numbers to solve problems including situations involving equivalent ratios and rates;
(D) estimate and round to approximate reasonable results and to solve problems where exact answers are not required; and
(E) use order of operations to simplify whole number expressions (without exponents) in problem solving situations.