5 neat programs. 1) LOAN CALCULATIONS - Present Value, payment amount, # of payments etc. 2) COMPOUND INTEREST - All types of calculations 3) PERPETUAL CALENDAR - Display any month of any year from 1583 to 9999 4) SPACESHIP TARGET GAME - Shoot and intercept a spaceship 5) LAST NUMBER GAME - This game helps promote math skills.\n\nOriginal retail price: $9.95 (M.W. Ruth Co. Catalog, October 1987)