With this interactive Jeopardy powerpoint make review time fun! There are 25 questions ranging in difficulty to quiz your students on rounding, adding and subtracting decimals. Divide the class into groups and let them pick categories and answer questions. Click on the number on slide 2 to move to the page with the question. If you click anywhere in the white space it will reveal the answer. If you click on the "Math" image at the bottom of the screen it will bring you back to the categories page to choose another question! What I did was print off all the slides (I printed 9 per page) that way I had an answer key, so if a student answered incorrectly, the rest of the class still had a chance to answer before the correct answer is revealed.