A

NEW SYSTEM

OF

ARITHMETIC,

ON

AN IMPROVED PLAN:

EMBRACING THE

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

CURRENCIES; INTEREST.

AND ALL

PROPORTIONAL QUESTIONS

IN ONE RULE APPLICABLE TO THE WHOLE

THE PROCESS GREATLY SIMPLIFIED AND ABRIDGED.

BY CHARLES G. BURNHAM, A. M.

KEENE, N. H.:

PUBLISHED BY 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.