The New Normal Mental Arithmetic

Philadelphia: Christopher Sower, 1908. Revised edition. Small octavo ( 12mo) in brown polished illus cloth-backed boards; 176 pages. Modest stain to front; very small and neat personal owner signature; esle an impressively tight adn crisp copy. Very good(+) thus. Please see photos. Hardcover.

Includes addition, subtraction, division, fractions, denominate numbers, proportion, percentage, story problems and more.