00555naa#a2200169#i#450# EN\INFRA-M\bibl\3423 20241127152529.3 1998-0744 20140815b2014####ek#y0engy0150####ca RUS RU Classifying Skills for Development of the 5th–6th-Classes Students’ Mathematical Capabilities Within the Numeric Line Format Journal article Moscow INFRA-M Academic Publishing LLC. 2014 6 с. Journal article local Visitaeva Maret B. naukaru.ru