This PowerPoint slideshow is fully-animated. Just click and go. Five minutes of mental math:skip-counting, odd and even, adding and subtracting, comparing, word name, counting coins, 2-D and 3-D shapes, multiples of ten, place value, two-digit and three-digit numbers. Students have five seconds to solve each problem, and then the answer shows for two seconds. Then on to the next problem, a total of 43 problems and their answers. And did I mention that there are TEN PowerPoints in this seri