Bonus

Mental Math with Tricks and Shortcuts

This E-booklet covers addition shortcuts through a cube root shortcut.  It utilizes many multiplication shortcuts and reveals the algebraic formulas used for many mental math calculations.

Example:

25 x 1754 = (1754)/4 x 100 = 43,850

Naturally, Mental Math takes considerable practice for most of us to become reasonably proficient.  Even an easy one like the one above can be difficult at first for larger numbers.  Preforming Math Tricks can be a fun and entertaining accomplishment.

Example of a complicated problem made simple:

A teacher asked the class for the sum of all the digits from 1 to 100.  One student gave the answer in less than 1 minute. 

How?

Consider, 1+99, 2+98 ... to 49+51 with 50 left over
50 x 100 = 5000 + 50 = 5050

<--Return to Download Page