basic descriptive statistics, such as mean, median, mode, range, standard deviation, interquartile range, quartiles and percentiles.The ability to construct proofs is not tested.

triangles, including isosceles, equilateral and 30°-60°-90° triangles.

coordinate geometry, including graphs of functions, equations and inequalities, intercepts and slopes of lines.

setting up equations to solve word problems.

solving simultaneous equations and inequalities.

solving linear and quadratic equations and inequalities.

relations, functions, equations and inequalities.

factoring and simplifying algebraic expressions.

concepts such as estimation, percent, ratio, rate, absolute value, the number line, decimal representation and sequences of numbers.

arithmetic operations, exponents and roots.

properties and types of integers, such as divisibility, factorization, prime numbers, remainders and odd and even integers.

The skills, concepts and abilities are assessed in the four content areas below. Many of the questions are 'word problems,' which must be translated and modeled mathematically. Some of the Quantitative Reasoning questions are posed in real-life settings, while others are posed in purely mathematical settings.

Mean median mode range khan academy