Mental Math Tricks by Kevin OConnor - HTML preview
PLEASE NOTE: This is an HTML preview only and some elements such as links or page numbers may be incorrect.
Download the book in PDF, ePub, Kindle for a complete version.
Download the book in PDF, ePub, Kindle for a complete version.
7+4 = 11
74 X 11 = 814
This is a really simple method and will save you so much time with your 11 times tables. http://www.memorymentor.com/