This programed mathematics textbook is for student use in vocational education courses. It was developed as part of a programed series covering 21 mathematical competencies which were identified by university researchers through task analysis of several occupational clusters. The development of a sequential content structure was also based on these mathematics competencies. After completion of this program the student should know that the word "product" indicates multiplication and be able to: (1) multiply two or three numeric fractions of the form a/b, where 0 is less than (a,b) when these are less than 100, (2) multiply a numerical fraction of the form a/b, where 0 is less than (a,b) when these are less than 100, by a fraction containing a letter and a positive integer less than 100, (3) multiply two literal fractions of the form a/b, (4) multiply a numeric fraction of the form a/b, where 0 is less than (a,b) and these are less than 100, and (5) multiply two mixed numbers of the form Xa/b where 0 is less than (X,a,b) and these are less than 100. The material is to be used by individual students under teacher supervision. Twenty-six other programed texts and an introductory volume are available as VT 006 882-VT 006 909, and VT 006 975. (EM)