1. Set for teaching mathematics preschool children and younger students, containing descriptive material in the form of instruction elements forming a ladder, characterized in that the training elements are designed as planar or volumetric geometrical figures forming a digital ladder from digital steps, each of which comprises an equal number elements that are identical in the first step size; Obverse digital steps divided vertically into two parts: one part is shown the figure, and the other part is divided horizontally into equal-sized elements, the number of which corresponds to that shown figure, the digital steps are arranged in the digital ladder to extract them from a ladder to monitor the numbers and perform with them mathematical operations - addition, subtraction, multiplication, division, comparison by placing the cards on top of each other and their application to each drugu.2. A kit according to claim 1, characterized in that it further comprises a card with mathematical signs "+". "-", "=", "", "" and a card with a question mark on the back side of a print of a character "X" .3. Set according to claim. 1, characterized in that the training elements are in the form of different length of flat square or rectangular cards formy.4. Set according to claim. 1, characterized in that the training elements are in the form of different height or bulk brusochkov tsilindrov.5. Set according to claim. 1, characterized in that the training elements are for example made of cardboard, laminated paper, plastic, dereva.6. Set according to claim. 1, characterized in that the learning spread elements in the horizontal or vertical ploskosti.7. Set according to claim. 1, characterized in that the reverse side of the elements Obuchi
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