Edited by . A. G. Mordkovich . 12th Edition . , spr. - M. : Mnemosin, 2010. 223 s. The main feature of the tasker is an exercise system carefully built according to the degree of increasing difficulty. The titles of the problem book and textbook paragraphs are identical. Textbook and task book passed a wide experimental test in Russian schools . Inequalities and systems of inequalities . Linear and quadratic inequalities . Rational inequalities . Multiples and operations on them. Systems of Rational Inequalities . Systems of Equations . Basic Concepts . Methods of solving systems of equations . Systems of Equations as Mathematical Models of Real Situations . Numerical Functions. Definition of numeric function. Definition area, function value area. Ways to set the function. Function Properties. Even and odd functions. Functions in n (p is N), their properties and graphs. Functions in x-n (p is N), their properties and graphs. Function y ax , its properties and graph. Progression. Numerical Sequences. Arithmetic progression. Geometric progression. Elements of combinatorics, statistics and probability theory . Combinatorial tasks. Statistics information design. The simplest probabilistic problems. Experimental data and probability of events.