암(速)산의 명수. The Book of How to Become a Lightning Calculator,by Anonymous
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암(速)산의 명수. The Book of How to Become a Lightning Calculator,by Anonymous수의 덧셈 곱셈 나눗셈 등 그리고 뱅크디스카운트등 목차에 처럼 다른 암산을 하는 법에 대해서 기술한 책.
Multum in Parvo Library. Vol. I. FEBRUARY, 1894. Published Monthly.
No. 2.
How to Become a
LIGHTNING
CALCULATOR.
Smallest Magazine in the World. Subscription. Single copies,
PUBLISHED BY
A. B. COURTNEY,
671 Tremont Street, Boston.
목차
암(速)산의 명수. The Book of How to Become a Lightning Calculator,by AnonymousCONTENTS
Instantaneous Addition.
How to Add Two Columns at Once.
Multiplication.
Accurate Interest.
Equation of Payments.
The Lightning Calculator’s Addition.
Bank Discount.
How to Make Change.
Proof of Multiplication in Ten Seconds.
The Canadian Interest Rule.
Table of Transposed Numbers.
Short Method to Find the Interest of a Given Sum.
Interest Computations.
