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Magic quick calculation(Chinese Edition)
Seller: liu xing, Nanjing, JS, China
Seller rating 5 out of 5 stars
paperback. Condition: New. Paperback Pages. Number: 106 Language: Chinese. Magic quick calculation compared with other fast calculation method has the following six characteristics: 1. Advanced nature of the advanced nature of magic quick calculation is mainly reflected in two ways: First. fast. in less than 100 two-digit multiplication speed calculation. the pupils can usually be within 3 seconds to arrive at a correct answer. for some specific data. within two seconds can be calculated; a wide range of magic quick ca. Seller Inventory # N38749