请注意这个活动已过期

Trachtenberg Speed System of Mental Mathematics - For Maths Freaks

门票
地址
通讯录

The Trachtenberg Speed System is a system of mental calculation. Sometimes presented as an alternative way of learning maths, the system consists of many maths shortcuts and mental math tricks, particularly for multiplication.

The system primarily focuses on multiplication tricks but with further practice and study you can learn division, addition, subtraction and square root.

Known to be one of the fastest speed math systems, it comprises a number of easily memorised patterns that allow one to perform arithmetic computations without pen and paper.

Credit: Image of Joyous Learning