Hello Tereza,

Its very tough to get 3 digit score in CBSE maths but you can gain high marks by following some preparation tips. Click on the following link to know Tips and tricks.

https://school.careers360.com/articles/cbse-class-12-maths-preparation-tips

Best of Luck!!

Hi Aspirant,
It is tough to score 100 as it means you need to be perfect.
Understand the concepts and make NCERT and RD SHARMA your friends.
Practice a lot of questions and avoid silly mistakes.To remove that exam panic,learn to take the pressure in a positive way.
Hope this helps.