## Methods for fast multiplication

Published May 01, 2018

In everyday life, we do not rarely have to multiply the numbers. Sometimes it needs to be done quickly, like calculators-virtuosos. **The methods
of fast multiplication** are used for cross multiplication, which is very useful when operating with two-digit numbers. This way used in the olden
times by the Greeks and Hindus and was called by the way of rapid multiplication by a cross...