What are some fun, quick, quirky, or otherwise compelling ways to memorize the times tables?
posted by serazin on Oct 9, 2009 - 26 answers

Why is it hard for me to perform simple mental calculations with certain numbers? [more inside]
posted by lalex on Jun 5, 2007 - 19 answers

100 multiplication problems in 5 minutes. Our 9yo needs help in speeding up his answers. [more inside]
posted by LadyBonita on Jan 19, 2007 - 63 answers

MathFilter: I'm looking for integer multiplication algorithms. [more inside]
posted by null terminated on May 10, 2005 - 4 answers