ISBN: 9787565032943 - 儿童珠心算简易教学法(上) (1 resultados)
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Librería: liu xing, Nanjing, JS, Chinaliu xing
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Envío por EUR 16,05Se envía de China a Estados Unidos de AmericaCantidad disponible: 3 disponibles
paperback. Condición: 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 operations based on the principle that it is not only fast computing capabilities .…
