THE

NORMAL

STANDARD ARITHMETIC,

BY ANALYSIS AND INDUCTION,

DESIGNED FOR

PUBLIC AND PRIVATE SCHOOLS, NORMAL
SCHOOLS, ACADEMIES, ETC.

BY

EDWARD BROOKS, A. M., PH. D.,

SUPERINTENDENT OF PUBLIC SCHOOLS OF PHILADELPHIA;

LATE PRINCIPAL OF STATE NORMAL SCHOOL, PENNSYLVANIA, AND AUTHOR OF THE
NORMAL SERIES OF ARITHMETICS, ELEMENTARY ALGEBRA, ELEMENTARY
GEOMETRY, PLANE AND SOLID GEOMETRY, PLANE AND SPHERICAL
TRIGONOMETRY, PHILOSOPHY OF ARITHMETIC, METHODS OF
TEACHING, MENTAL SCIENCE AND CULTURE, ETC.

"Analysis and Induction are the golden keys of science."

PHILADELPHIA:

CHRISTOPHER SOWER COMPANY,

614 ARCH STREET.