there are many question
so please corporate with the some provided here,
1. take L.C.M of DENOMINATOR and check if they are in form of 2n 5m . if so they are terminating and if they aren't they are non terminating
2.D
3. A2-B2 =(A+B)(A-B) so 4-3=1
4.1/9 cube root 27 =3 (3)-2 1/3*1/3
5. sorry didn't get it
6.0.5 and 0.33333 it can be 0.25 0.2 (express this in fraction form)
7. root 2 and root 3
8. rooted value would be multiplied so, 6root 10
I think you should go through your tacher for your problems there are so many problems here so i think you are doing self study
So please go through your NCERT book .