# How to solve problems based on average mentally.

In this article you are going to learn method to solve average based problems mentally.Generally we use a formula of average to solve problems which sometimes proved to be lengthy and difficult to use.Method I’m going to discuss will amaze…

# How to find unit digit in multiplication quickly.

In this article you are going to learn how to find unit place digit of complex multiplication mentally and quickly without actually finding the complete product. Lets take an example: 456*35467*2345829* 483457*12 Remember This: The unit place digit in…