Number_system_1.2

Hello students:-, from today I m going to start mathematics classes of class 9th ...In which you will study chapter wise solution of mathematics n.c.e.r.t book of u.p.board.......Let's start....The 1st chapter ...Number system in which we 'll study about rational ,irrational numbers ,numbers presenting on number line,decimal numbers presenting on numbers line & rationalisation of irrational numbers.this is excercise 1.2.
in this excercise i had done some qustion please read and keep practice.
if you want any other topic so please blow coments, i will try my best.