For more details go to www.abellna.com website. <br /> <br />A full mental math video may contain 2-8 examples. Only some examples are provided in a given video for demonstration purposes. <br /> <br />Flipping or inverting a fraction is not required under this technique. <br /> <br />Many mental math techniques for fractions are included in the Mental Math: Unleash The Power e-book. Some are provided in the video tutorials along with the local website.
