Introduction: This is the first module of the GCSE Computer Aided Mathematics Project and is concerned with Arithmetic. Other projects in the series will deal with graphs, equations, algebra, geometry, trigonometry, statistics and other related subjects. All the work in this module is at GCSE Intermediate level but there will be some Higher level work in other subjects, this will, however, be clearly noted. The format of these modules has been designed for ease of use and you are at liberty to switch from page to page with little effort. The list on the next page gives you the subjects covered by this module. Remember,if you are in any doubt try clicking the left mouse button on any box that interests you. The method of working through the module will soon become second nature! To get out of this page (and any other text page) click the left mouse button in the top left hand corner of the screen. Now - click on the CONTINUE button. Enjoy your studies.. J. Blackett C1991.