Smart Mathematical tricks

This article is about some Mathematical tricks.As today is a very fast computing world.Every exam like Banking,T.E.T(Teaching Eligibility Test,I.A.S etc. all needs speed in computing for selecting in exam.So a person should have some mathematical tricks for faster computing.Here I am try to give to all of you some tricks Which can help you for a good future.

1. Multiplying with 5

Let us take a number 5887.We have to multiply it with 5
Eg. 5887*5=Just divide it to by 2.After divide we get a number=2943,last may add 0
which give 2943.5,ignore remainder the Ans is=29435


2. Any 2 digit number multiply by 99

Eg.let a 2 digit number is 44.We have to multiply it with 99
44*99=(44-1)(100-44)=4356


3. Multiplying any number by 11

Let us take a number 42.We have to multiply it by 11
42*11=(4+2)=6
now add into 42
The answer is=462

4. The square of any number having last digit 5

Let us take a number 85.We have compute its square
85*85= Firstly compute square of last digit which always 25
then multiply all digit remains with its successor.
85*85=8*(8+1)25=7225