This is a self-generating, basic mathematical computational skills sheet. There are 12 problems (3 addition, 3 subtraction, 3 multiplication, 3 division) in total, with a corresponding answer key. If you do not like the randomly-generated problems, then just hit the 'F9' key and a differing set of numbers will be generated. I like to use these problems as a means of keeping my students computational skills sharp all the while not taking up a great amount of class time. Perfect for those much-needed 10-15 minute time-fillers!