How to Calculate Quickly 如何快速计算速算全课程 Henry Sticker

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广东广州

认证卖家担保交易快速发货售后保障

作者Sticker, Henry

出版社Dover Publications

ISBN9780486202952

出版时间2018-10

装帧平装

定价56元

货号YB-61888

上书时间2024-07-02

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您想将计算速度提高一倍还是三倍？您可以对计算机的结果进行快速的心理检查吗？您可以在杂货店收银机，服务员的支票或百货公司的收费帐户中查看为您算出的账单吗？还是您只是简单地说出他们的话来处置您的钱？不要羡慕能够以闪电般的速度和完全的准确性执行这些计算的朋友。他们的能力并不是天生的。您可以通过本书中介绍的方法获得这些技能。 Do you want to double or triple the speed with which you calculate? Can you run a rapid mental check over the results of your calculating machines? Can you check bills worked out for you by grocery store cash registers, on waiters' checks, on department store charge accounts? Or do you simply take their word for the disposal of your money? Don't envy friends who can perform these calculations with lightning speed and complete accuracy. Theirs is not wholly an inborn ability. You can acquire these skills by the methods described in this book.