From Paul: I'm trying to find the book/books that explain this system? I have one small book that explains the very beginning of the system, but covers only about 10 to 20%. I'v tried several book sellers and have had no luck. Answered by Diane Hanson.
From Noria Jones: About a year ago a grade 5 teacher at my son's school taught the children how to multiply the 9 times table on their fingers quickly.
It was part of a kind of finger math kind of thing...
Answered by Patrick Maidorn.
Page 1/1
Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.
