Consider only the maths syllabus - The first step is that you should only consider only CBSE authorized Syllabus. You must target finishing only the needed syllabus portion. Spend your time on sections of the syllabus as per their importance.
NCERT as the first choice - CBSE maths paper consists of about 40% of the direct questions only from NCERT Book. This is a major fact that most students don’t know. Don’t search elsewhere, Only Consider NCERT as the first choice because that is what most of the toppers do.
Practice Regularly - You need to practice regularly for achieving your target of scoring 100 in maths in board exams of class 10th or 12th. Be regular in dealing with sums.
Revision - Revise all the important questions and formulas from a chapter on a daily basis and attempt mock tests after preparing all the chapters. Many students take mock tests chapter-wise after finishing that particular chapter. This is also the correct way to practice in the right direction.
Memorize Formulas and Theorems: Make flashcards or summary sheets to memorize important formulas, theorems, and definitions. Regular revision of these key concepts will help you recall them quickly during the exam.
Follow a regular timetable - Time management is a very crucial step towards your journey of scoring 100/100 marks in maths. You should not divide time equally since some subjects like maths require more time in comparison to Languages or theory subjects. Math requires twice- thrice the time you give to languages.
Don't spend your precious time learning more advanced sections - Many of the students can’t understand what is taught to them. So, always start with easier and simpler topics and consider the syllabus given by the CBSE. This will give you more confidence to make you invest your time and energy in a more useful topic.
Sample Papers Practice- Practicing makes you perfect and gives you confidence. The more you practice the more you will be sure. Solving more and more sample papers as the real exam will boost your score to 100.
Keep trust in yourself and self-reliance - Never lose your self- confidence as this will help you to score better marks. Keep in mind that no exam can estimate anyone’s ability. For sure you can score 100/100 marks in math CBSE board exams. This needs smart work, not hard work.