Number system Trick | Unit Digit | बहुत ही आसानी से सीखे | For |Railway|ssc|banking and other exams| 

Number system Trick | Unit Digit | बहुत ही आसानी से सीखे | For |Railway|ssc|banking and other exams|
app link :-
on-app.in/app/h...
in this video I teach you
how to find unit digit of any expression
unit digit of factorial number
my queries:-
unit digit trick in hindi for all competitive exams