Excerpt from Rational Elementary Arithmetic He is next led to apply his facts to other concrete problems, such as: If John has one marble and Henry has three, how many have both? Which are not constructive, but which oblige him to use his judgment. Finally the number combinations thus learned and applied are fixed by a series of drills. An essential feature of these drill tables is that they make the subject less formidable to the child. For example, the tables on page 43 show that if the child adds three, say, to a series of numbers ending in six, all the sums will end in nine. As soon as the child masters the develop ment of a number, he is taught to associate it with certain facts of his daily life; as, for example, in connection with the number eight, is given the table of dry measure, and with the number twelve, the foot, the months, and the mysteries of the clock face. In this way the child is sure to be interested, and his powers both of memory and of judgment are developed. Throughout the book much use is made of graphic illustrations and concrete problems, such as drawing to scale. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.