Top Preparation Tips for BSEB Class 12 Maths Exams (2026)

The BSEB Class 12 Mathematics Exam is one of the most significant subjects for Science and Commerce streams. A good score in Mathematics can help you gain a better overall percentage and admission to top-notch colleges, and it can also help you qualify for entrance exams like JEE, NDA, CUET, Polytechnic Entrance, BCECE, and many more.

Mathematics requires regular practice, conceptual clarity, time management, and getting acquainted with question patterns. With the right strategy, average students can score between 85-95+ easily in Bihar Board exams. 

This guide contains expert-approved preparation tips, high-weight chapters, daily practices, how to avoid mistakes, and the right approach to perform your best in the 2026 BSEB Maths Board Exam.

1.0Core Principles for Daily Study

A strong foundation in Maths comes from daily practice and structured learning. Students must follow a disciplined routine and focus on understanding concepts, not memorizing them.

Daily Study Principles

Understand Concepts Clearly
Before solving problems, understand why a formula works, where it applies, and how it is derived.

Practice Every Day
Maths is a skill subject — even 1–1.5 hours of daily practice can drastically improve accuracy and speed.

Study High-Weightage Chapters First
Start with Calculus, Algebra, and Probability — they make up almost 50–55% of the paper.

Solve Numericals with Focus
Spend time solving questions step-by-step to strengthen problem-solving techniques.

Stay Consistent
Small, consistent efforts beat last-minute studying.

2.0Chapter-Wise Strategy for BSEB Maths

Every chapter requires a different preparation approach. Here’s how to study major units for maximum marks:

Calculus (25–30 Marks)

• Practice derivatives, integrals, AOD, and differential equations daily.
• Solve textbook exercises thoroughly.
• Keep a separate list of formulas for derivatives and integration.

Algebra (12–15 Marks)

• Practice Matrices and Determinants regularly.
• Understand inverse matrices and solve linear equation sets.

Probability (10–12 Marks)

• Learn formula applications for conditional probability and Bayes’ theorem.
• Practice conceptual questions — formulas alone won't help.

Vectors & 3D Geometry (14–18 Marks)

• Master vector addition, dot/cross product.
• Study 3D concepts with diagrams.

Linear Programming (4–5 Marks)

• Learn graphical method and feasible region identification.

This chapter-wise strategy ensures you score maximum from important units

3.0Key Formula & Notebook Preparation Tips

Formulas are the backbone of BSEB Class 12 Maths. Maintaining an organized formula notebook helps with fast revision.

What to Include in Your Formula Notebook

• Derivative formulas
• Integration rules
• Trigonometric identities
• Matrix properties
• Determinant formulas
• Probability rules
• Vector identities
• 3D Geometry formulas

How to Use Your Notebook

• Review formulas for 10 minutes daily
• Revise thoroughly during the last 30 days
• Highlight important and frequently used formulas

This notebook becomes a powerful tool during final revision.

4.0Importance of Solving PYQs & Sample Papers

Solving previous year question papers (PYQs) is essential to score high in the BSEB Maths exam. Many question patterns repeat every year.

Why PYQs Are Important

Understand real exam format
Identify repeated questions
Improve speed & accuracy
Boost confidence
Learn step-wise marking system
Strengthen high-weightage chapters

Minimum Recommended Practice

• Solve last 5–7 years of PYQs
• Attempt 10–12 sample papers
• Take one full mock test per week

This method helps students eliminate fear and perform well during the actual exam.

5.0Time Management Strategy for the BSEB Maths Exam

Managing 3 hours properly is essential. Allocate time based on question types.

Ideal Time Distribution

Tips

• Attempt easy questions first
• Don’t spend too much time on single questions
• Leave long questions for the second half

Following this structure ensures you complete the entire paper comfortably.

6.0Step-Wise Presentation Tips

Maths is heavily step-marked in BSEB, so writing your answers in a clean, structured way is extremely important.

Presentation Tips

Begin every answer with the correct formula
Show all steps clearly
Keep rough work neat
Highlight or box final answers
Avoid overwriting and messy handwriting
Use diagrams for 3D & LPP related questions

Even if the final answer is wrong, correct steps help earn partial marks.

7.0Common Mistakes to Avoid

Here are major mistakes that reduce marks in the BSEB Maths exam:

Avoiding these errors can increase your score by 10–15 marks.

8.0Revision Strategy (Last 30 Days)

A smart revision plan helps retain concepts and formulas.

Last 30 Days Strategy

• Revise Calculus, Algebra & Probability first
• Read formula notebook daily
• Solve 1 sample paper every day
• Re-attempt incorrect PYQ questions
• Practice 2–3 full mock tests per week
• Focus on important and repeated topics
• This ensures complete preparation before the exam.