Bihar Board Class 10 Math Weightage 2026 Unit and Chapter-Wise Mark Distribution

Bihar Board Class 10 Math Weightage 2026 provides information about the marks distribution, which will help you to pick the important or high-weightage topics first. The Bihar Board Class 10 Math Syllabus 2025-26 consists of 7 units, where Algebra, Trigonometry, and Geometry hold the highest weightage at 20 marks each. The units like Number Systems, Coordinate Geometry, Mensuration, and Statistics and Probability are the second highest weightage, contributing about 10 marks each. The Bihar Board Class 10 Math will be held for 100 marks, divided into objective (MCQs) and subjective (short/long answers) sections with internal choices. In Polynomials (Algebra), Zeros and the division algorithm will carry 4-6 marks. In Quadratic Equations (Algebra), Factorization, the nature of roots, in Pair of Linear Equations, Graphical solutions, elimination, T riangles (Geometry), Similarity criteria, Pythagoras, and in Circles (Geometry), Tangents, and theorems are important.
In BSEB 10th Math paper 2026, Section A includes 100 MCQs (attempt 50 for 50 marks), Section B has 30 short-answer questions (attempt 15 for 30 marks), and Section C has 8 long-answer questions (attempt 4 for 20 marks). Students need at least 33% to pass. The BSEB 10th Math exam will be held for 3 hours and 15 minutes total time. Prioritize high-weightage units like Algebra (Polynomials, Linear Equations), Geometry (Triangles, Circles), and Trigonometry for maximum scores. Continue reading the article to know more on Bihar Board Class 10 Math Weightage 2026 Unit and Chapter-Wise Mark Distribution.
Also Check Bihar Board Class 10 Math Model Question Paper 2026

Bihar Board Class 10 Math Weightage 2026 Theory Exam

The Bihar Board 10th Math exam pattern 2026 includes 50% objective (MCQs) and 50% subjective (short/long answers). Refer to the table below to get an insight into the unit and chapter-wise.

Chapters	Topics	Marks Allotted
Real Numbers	Fundamental Theorem of Arithmetic	10
	Euclid’s Division Lemma and Algorithm
	Rational and Irrational Numbers
Polynomials	Division Algorithm For Polynomials	20
	Zeroes and Coefficients
	Geometric Meaning of The Zeroes
Pair of Linear Equations in 2 Variables	Graphical Solution to Linear Equations
	Substitution Method, Elimination Method
	Cross Multiplication Method
	Equations Reducible to Linear Form
Quadratic Equations	Introduction to Quadratic Equations
	Procedure of Completing The Square
	Nature of Roots
	Equations Reducible to Quadratic Form
Arithmetic Progression	Introduction to Arithmetic Progression
	nth Term of A.P.
	The sum of n Terms of A.P.
	Word Problems of A.P.
Coordinate Geometry	Distance Formula	10
	Section Formula
	Area of Triangles
Introduction to Trigonometry	Trigonometric Ratios, Trigonometric Tables	20
	Trigonometric Ratios of Complementary Angles
	Introduction to Trigonometric Identities
	Applications of Trigonometric Identities
Some Applications of Trigonometry	Introduction to Heights and Distances
	Applications of Heights and Distances
Triangles	Basic Proportionality Theorem	30
	Converse of BPT
	Criteria For Similar Triangles
	Problems with Similar Triangles
	Areas of Similar Triangles
	Pythagoras Theorem
	Problems on Pythagoras Theorem
Circles	Tangents to a Circle
	Properties of Tangents
Construction	Construction of Similar Triangles
	Construction of Tangents
Areas Related to Circles	Areas and Circumference of a Circle
	Areas of Sectors and Segments
	Areas of Combination of Figures
Surface Areas and Volumes	Surface Area: Combination of Solids
	Volume: Combination of Solids
	Conversion of Solids
	Frustum of A Cone
Statistics	Arithmetic Means of Grouped Data	10
	Mode of Grouped Data
	Median of Grouped Data
	Relation Between Central Tendencies
	Cumulative Frequency Curve
Probability	A Classical Approach to Probability
	Applications of Probability

Read more: Bihar Board Class 10 Math Exam Pattern 2025-26

Bihar Board Class 10 Math Question Paper Blueprint 2026

Bihar Board Class 10 Math question paper blueprint 2026 comprises 100 marks. There will be 138 questions in total and the exam will be held for 3 hours 15 minutes, split evenly between objective and subjective sections. Here is the Bihar Board Class 10 Math Question Paper Blueprint 2026 in the table below:

Question Type	Total Questions	Attempt	Marks per Question	Total Marks
Objective (MCQs)	100	50	1	50​
Short Answer	30	15	2	30​
Long Answer	8	4	5	20​
Total	138	69	-	100

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As per the research, Algebra, Trigonometry, and Geometry dominate the Bihar Board Class 10 Maths 2026 weightage with 20 marks each, totaling 60 marks. Try to focus more on these topics and chapters that are already mentioned above. For better preparation, you must solve as many Bihar Board Class 10th Math Previous Year Question Papers as possible.