TY JOUR TI Tasks of the Final Stage of the 2019 Republican Olympiad in Mathematics, Methods and Criteria for Evaluating Their Solution KW Republican olympiad KW mathematics KW schoolchild KW olympiad problem KW assessment criteria JO Scientific Research and Development. Socio-Humanitarian Research and Technology AU Keldibekova, A.O. PY 2019 IS 8 PB INFRA-M Academic Publishing LLC.