In this episode we learn how to rapidly square any number ending in 5.
Episode Summary In this episode, we learn the very powerful math trick of mentally squaring any number ending in 5. In order to perform this math trick, we simply take the number in front of the 5 and multiply this by one number higher. To finish the answer, we simply put 25 at the end. This mental math technique can be done in seconds and can help in many situations when improving calculation speed is important.