00664naa#a2200193#i#4500001002200000005001700022011001400039100004100053101000800094102000700102200007800109210005100187215001000238608002700248675011300275700003600388700003200424856001400456EN\INFRA-M\bibl\3543820241124140925.7##a1998-0744##a20200227b2020####ek#y0engy0150####ca0#aRUS##aRU1#aAbsolute Value of Number in Mathematical Olympiads TaskseJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2020##a6 с.##aJournal article2local##aОбразование. Воспитание. Обучение. Организация досуга. 37zRUS#1aSopuevgUlanbek Adahimzhanovich#1aKeldibekovagAida Oskonovna4#azh-szf.ru