title: [Performance of various types of calculation as a method of forecasting the educability of children with mental retardation].
mesh_terms: D002648:Child; D004495:Education of Persons with Intellectual Disabilities; D005260:Female; D006801:Humans; D007361:Intelligence Tests; D008297:Male; D008433:Mathematics; D008722:Methods; D011379:Prognosis
vernacular_title: Formirovanie nekotorykh vodov scheta kak metod prognoza obuchaemosti deteĭ s zaderzhkami razvitiia.