Monday, May 19, 2008

Cálculos mentales en segundos

Existen personas que son capaces de hacer cáculos mentales de multiplicación y factorización (entre otros) de hasta varias cifras, este tipo de personas son conocidas como calculadoras humanas.
Para una persona promedio, hacer cálculos mentales en segundos no es una tarea fácil, y se hace aun mas complicado conforme se incrementa el número de cifras, existen técnicas que nos facilitan la realización de ciertas operaciones matemáticas en segundos; los siguientes videos, explican algunas de éstas técnicas, espero les sean de mucha utilidad, claro; sin pretender llegar a ser una calculadora humana, podremos realizar algunos cáculos simples en segundos y asombrar a más de uno.



EasyCal-6-Pause-multiplication with11.zip - 3.65MB
Title: EasyCal-6-Pause-multiplication with11

Los dos siguientes videos pueden verlos en los enlaces.

Video cómo encontrar el cuadrado de un número cercano a 50
Latest- finding square near 50.zip - 1.95MB
Title: Latest- finding square near 50

Video cómo realizar multiplicaciones en segundos
8 min__Base-10_nofp_bg.zip - 3.97MB
Title: 8 min__Base-10_nofp_bg

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