MULTIPLY ANY EVEN NUMBERS BY 5

MULTIPLY EVEN NUMBERS BY 5

 Its very easy...follow below two step and you can easily find the numbers in your mind

 E.G  242*5 = 1210

 

step-1 Divide the even number by two : 

            242 / 2 = 121

 

step-2 Put a 0 at the end of the result :

             1210