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New computing technology: Abacus Abacus(Chinese Edition)
Seller: liu xing, Nanjing, JS, China
Seller rating 5 out of 5 stars
paperback. Condition: New. Paperback Pages Number: 324 Language: Chinese. New computing technology: Abacus and Abacus includes three: theory abacus. abacus. abacus technology. learning the technology guidance. practical and operable . supplemented by special exercises. Appendix: abacus. abacus mental arithmetic grades and Dan identification standards. Seller Inventory # MZ0446