This is part two of a two-part SMSG text for grade eight students whose mathematical talents are underdeveloped. The reading level of this text has been adjusted downward, chapters shortened, and additional concrete examples included. Nevertheless, the authors warn that the text may not be appropriate for the very slow non-college-bound student. Chapter topics include: negative rational numbers, equations and inequalities, coordinates in the plane, real numbers, and scientific notation, decimals, and the metric system. (MN)