This self checking worksheet features two values given at the top of the page: Log base B of 3 and Log base B of 7. Twelve different problems are presented (such as log base B of (3/7)) and the students are to use the product, quotient or power property to expand the logarithm, then substitute in the values given at the top of the page. All solutions are decimals. My students were better with the product, quotient and power properties when they finished the worksheet. Once the student solves the problems, the solution to a riddle is revealed.