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How to become a lightning calculator

Front matter

Reading edition

Cover,
Cover,

CONTENTS

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.

Multum in Parvo Library.

Vol. I.

February, 1894. Published Monthly.

No. 2.

How to Become a LIGHTNING CALCULATOR.

Smallest Magazine in the World. Subscription price, 50 cts. per year. Single copies, 5 cents each.

PUBLISHED BY A. B. COURTNEY, 671 Tremont Street, Boston.

Entered at Post-Office as second-class matter.

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