(NsBORNIK ARIFMETI^ESKIH ZADA^AH DLQ PEDAGOGI^ESKIH U^ILI] (B/s - (N~EKMAREW(B, (NqKOW fEDOROWI^s; (NfILI^EW(B, (NsTEFAN wASILXEWI^s ((NmOSKWA (B:s (Nu^PEDGIZ(B,s, 1948)
(NbIBLIOGR(B.: (NS(B. 315-316s
Keywords: (NaRIFMETIKA (B- (NzADA^Is