9787565032943 - 儿童珠心算简易教学法(上) (1 risultati)
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Da: liu xing, Nanjing, JS, Cinaliu xing
Contatta il venditoreVenditore con 5 stelleCondizione: Nuovo
EUR 50,89
EUR 15,44 spedizioneSpedito da Cina a U.S.A.Quantità: 3 disponibili
paperback. Condizione: New. Paperback. Pub Date: 2017-02-01 Pages: 125 Language: Chinese Publisher: Hefei University Press abacus. abacus is a type of short mental arithmetic. also known as Pearl brain speed calculation. it is the digital counting beads become symbols come human mind. and a style of computing abacus arithmetic o…perations based on the principle that it is not only fast computing capabilities .
