Buscar en Mind w/o Soul

martes, septiembre 18, 2007

Cálculo mental, cálculo rápido

Trucos matemáticos para hacer operaciones mentales rápidamente

10 Easy Arithmetic Tricks - The List Universe
10 Easy Arithmetic Tricks
jfrater03:42 am30 Comments

Math can be terrifying for many people. This list will hopefully improve your general knowledge of mathematical tricks and your speed when you need to do math in your head.

No hay comentarios: