1Calinger, Ronald S. Classics of Mathematics. New Jersey: Prentice Hall, 1995.
2Harris, Joe. Times Tables Made Easy. New York, NY: Dorling Kindersley Limited, 2009.
3Jacobs, Peter. “There’s an Amazing Way to Do Multiplication That’s Better than How You Learned in School.” Business Insider. June 5, 2014. Accessed: September 10, 2015.
4Liebermann, Oren. “Israeli Police Make Arrests in ‘Loaves and Fishes’ Church Arson.” CNN. June 12, 2015. Accessed: September 10, 2015.
5“Math.” Online Etymology Dictionary. 2015. Accessed September 10, 2015.
6“Math World Records.” Record Setter. 2015. Accessed: September 11, 2015.
7“Mental Calculation: Multiplication.” Record Holders. September 11, 2015.
8Morimoto, Bertah Kugelman. “Napier’s Bones.” Computer Sciences. 2002. Accessed: September 9, 2015.
9“Multiply.” Online Etymology Dictionary. Accessed: September 10, 2015.
10Qiu, Jane. “Ancient Times Table Hidden in Chinese Bamboo Strips.” Nature. January 7, 2014. Accessed: September 9, 2015.
11“Top Quotes about Multiplication.” Top Famous Quotes. September 11, 2015.
12Turnball, Michael. “Saint Andrew.” BBC. July 31, 2009. Accessed: October 2, 2015.
13Ultimate Weird But True: 1,000 Wild and Wacky Facts and Photos. Washington D.C.: National Geographic,
14Wingard-Nelson, Rebecca. Multiplication Made Easy. Berkeley Heights, NJ: Enslow Elementary, 2005.
15Zimmerman, Alycia. “Total Recall: Helping Our Students Memorize Multiplication Facts.” Scholastic. January 18, 2012. Accessed: September 9, 2015.