00782naa#a2200193#i#450# EN\INFRA-M\bibl\83913 20240915045027.7 1998-0728 20240609b2024####ek#y0engy0150####ca RU Organization of Extracurricular Activities in Primary School As a Condition for Eliminating Difficulties in Learning Mathematic Journal article Moscow INFRA-M Academic Publishing LLC. 2024 3 с. Journal article local Первая ступень обучения. Начальная школа. 373.3 Дополнительное обучение. 371.398 математики. 372.851 Denisova T. N. Samoylova E. V. Rubanova O. N. naukaru.ru