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A

NEW SYSTEM

OF

A R IT H M ET I C,

ON
AN IMP R O V E D PLAN :
EMBRACING THE

RULES OF THREE, SINGLE AND DOUBLE, DIRECT AND INVERSE;
BARTER LOSS AND GAIN; REDUCTION; MULTIPLICATION
AND DIVISION OF FRACTIONS: EXCHANGE OF -
CITRRENCIES: INTEREST-

aso all,

PROPORTIONAL QUESTIONS

IN ONE R U L E A PPLICABLE TO THE WHOLE

THE PROCESS GREATLY SIMPLIFIED AND ABRIDGED.

By CHARLES G. BURNHAM, A. M.

KEENE, N. H. :
PUBLISHED FEY S. & G. S. WOODWARD

Entered according to Act of Congress, in the year 1857, by C. G. BURNHAM, In the Clerk's Office of the District Court of the District of Massachusetts.

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