Mental Math + Prop Firms 
by Macronudge
(Senior Chimp, 21
Points) on 1/12/10 at 8:22pm
Tags:
Anybody have a pdf link to the trachtenberg book, or another idea for a way to get better at mental math for the prop firms.















http://www.scribd.com/doc/410
by android411http://www.scribd.com/doc/4108845/Trachtenberg-speed-system-of-math