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 />Basically, this mental math technique and others in the Mental Math: Unleash The Power e-book teaches how to cube two-digit numbers or multiplying numbers such as the following to themselves three times mentally without using pen/pencil and paper for scratch work. <br /> <br />11 x 11 x 11 <br />23 x 23 x 23 <br />46 x 46 x 46 <br />78 x 78 x 78 <br /> <br />Cubing three-digit numbers are also taught.
