This book is about playing with mathematics, teaching: (1) How to multiply and divide large numbers mentally; (2) Making addition and subtraction easy; (3) Tricks for understanding fractions and decimals; and (4) How to quickly check answers for each calculation. Described as a foolproof way to do multiplication, division, factoring estimating,…

This manual is collection of examinations. The first part contains 150 examination papers, the questions for which have been selected mainly from the English, French, and German collections of problems. These papers may be divided into three groups. The first 50 papers are confined to the simple rules, fractions, and weights and measures; the next…

This book is intended for students who know the numbers from one to thirty thoroughly, who can count to one thousand, who know something of the multiplication tables of two, three, four, five, six, ten, and twelve, and who understand the simplest facts about ratio and fractions. The purpose of the textbook is to conform numbers in their facts and…

This textbook is for arithmetic students who can use numbers into the thousands in addition and subtraction, who know what ratio is and understand something about fractions, who know some facts of measures, and who have studied the multiplication tables. The book contains about a year's work, mostly in practice, partly in extension of knowledge.…

This textbook presents the divisions of arithmetic in their natural order. The fundamental operations upon integers, common fractions, decimals, denominate numbers, and numbers expressed by letters, are followed by their applications to business and to various employments. The pupil is taught to develop observation and thought power, rather than…

This arithmetic textbook for common schools and academies presents lessons arranged from least complex to most complex to prepare students for algebra study. Lessons include practical business applications, and the book has been adapted to serve the business community's needs while respecting the science of numbers.

This textbook is an arithmetic exercise book. It is the first in a series of five volumes and contains 45 exercises with problems to solve.

This textbook is an arithmetic exercise book. It is the second in a series of five volumes and contains 49 exercises with problems to solve. [For "Chambers's Practical Concentric Arithmetics: Book I," see ED623160.]

This textbook is an arithmetic exercise book. It is the third in a series of five volumes and contains 48 exercises with problems to solve. [For "Chambers's Practical Concentric Arithmetics: Book II," see ED623161.]

This textbook is an arithmetic exercise book. It is the fourth in a series of five volumes and contains 59 exercises with problems to solve. [For "Chambers's Practical Concentric Arithmetics: Book III," see ED623162.]

This textbook is an arithmetic exercise book. It is the fifth in a series of five volumes and contains 69 exercises with problems to solve. [For "Chambers's Practical Concentric Arithmetics: Book IV," see ED623163.]

This textbook provides not only a mathematical basis, but also a scientific structure. Blackboard exercises are included, and great facility in comprehending the combinations and divisions of numbers will be acquired by this method.

This textbook is a second-grade course in arithmetic. While it contains a review of the work of Grade I, pupils who have not had the benefit of a kindergarten training or of Grade I drill will need to have certain principles and definitions more carefully explained. Starting with this knowledge, which is usually given in all Kindergartens, the…

This textbook is a third-grade course in arithmetic. It contains a review of the preceding book, a continuation and extension of the work in the fundamental processes and in fractions, and the introduction of several new principles in their simplest form, as percentage. The exercises are divided into lessons for convenience. Better results will…

This textbook is a fourth-grade course in arithmetic. It contains a review of the principles taught in Book III, with their extension to problems of greater difficulty. A few new principles are introduced from time to time, the aim being to introduce the new thought side by side with the review of those already taught. Realizing that the highest…