This document contains both a student's manual and a teacher's guide for high school mathematics essential to marketing. The student's manual contains 34 assignments within the following 11 units: (1) arithmetic fundamentals; (2) application of arithmetic fundamentals; (3) cashiering; (4) inventory procedures; (5) invoices; (6) computing employee earnings; (7) formulating a purchase plan; (8) purchasing merchandise; (9) finding retail price; (10) financial statement; and (11) personal mathematics. Each unit contains assignments that may contain objectives, problems, figures, technical learning concepts, and checking for understanding exercises. The teacher's manual contains the following: foreword and table of contents of student manual; lesson planning sheet; blank assignment forms for copying pretests and posttests, checking for understanding exercises, and guided and independent practices; and assignment answer keys for pretests, posttests, checking for understanding exercises, and guided and independent practices. (NLA)