MBSE HSLC Compartment 2026 Maths Chapter Weightage and Key Topics

Algebra alone carries 21 marks in the MBSE HSLC Mathematics theory paper — making it the single highest-weightage unit you must master for the Compartment Exam on June 30, 2026.

The Mizoram Board of School Education (MBSE) HSLC Mathematics paper is structured into 7 units for 80 theory marks plus 20 internal assessment marks. If you are appearing in the Compartment Exam 2026, knowing exactly how many marks each unit carries helps you build a targeted revision plan in the days remaining.

• The theory paper carries 80 marks; internal assessment adds 20 marks for a grand total of 100 marks.
• Algebra (21 marks) is the highest-weightage unit — cover Quadratic Equations, Linear Equations, and Arithmetic Progressions first.
• Geometry (15 marks) and Trigonometry (10 marks) together account for 25 more theory marks.
• Mensuration (10 marks) is formula-based and quick to revise under a time crunch.
• You need 33 marks out of 100 to pass — scoring well in Algebra and Geometry alone can clear this bar.

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MBSE HSLC Mathematics Paper Pattern 2026

The MBSE HSLC Mathematics paper is conducted in pen-and-paper mode for 3 hours. It contains objective, short-answer, and long-answer questions distributed across all 7 units. The paper tests both conceptual understanding and problem-solving ability, and you must attempt all sections.

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Chapter-Wise Marks Weightage for MBSE HSLC Mathematics

The table below shows the official unit-wise marks distribution for the MBSE HSLC Mathematics theory paper. Algebra, Geometry, Trigonometry, and Mensuration together account for 56 out of 80 theory marks — prioritising these four units gives you the best return on time invested.

Algebra, Geometry, Trigonometry, and Mensuration combined carry 56 marks out of 80. If you score even 60 percent of the available marks across these four units, you have already crossed the 33-mark passing threshold from theory alone.

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Most Important Topics in Each Unit

Within each unit, certain topics are asked more frequently based on previous MBSE HSLC paper patterns. Focus your revision on these areas first.

Algebra (21 Marks) — Highest Priority

• Quadratic Equations: Solve using factorisation and the quadratic formula. Know the discriminant condition to determine the nature of roots. Word problems on quadratic equations appear regularly.
• Arithmetic Progressions: Memorise the nth term formula and the sum of n terms formula. Application-based word problems are common in this topic.
• Pair of Linear Equations in Two Variables: Practise substitution, elimination, and cross-multiplication methods. Know the conditions for unique, no, and infinitely many solutions.
• Polynomials: Relationship between zeroes and coefficients for quadratic and cubic polynomials.
• Sets: Union, intersection, difference, complement, and Venn diagram-based problems.

Geometry (15 Marks)

• Triangles: Similarity criteria (AA, SAS, SSS), Basic Proportionality Theorem, and Pythagoras theorem with its converse. Proof-based questions from Triangles appear almost every year.
• Circles: Tangent properties — a tangent is perpendicular to the radius at the point of contact; two tangents drawn from an external point are equal in length.
• Constructions: Division of a line segment in a given ratio and construction of tangents to a circle from an external point are the two standard construction types.

Trigonometry (10 Marks)

• Trigonometric Identities: sin²? + cos²? = 1 and its derived forms. Simplification and proof-type problems using these identities are frequently asked.
• Heights and Distances: Problems involving angle of elevation and angle of depression. Practise at least 5 standard setups — tower and shadow, ladder against a wall, and observer-to-object problems.

Mensuration (10 Marks)

• Surface Areas and Volumes: Combination problems — a cone placed on a cylinder, a hemisphere on a sphere. Write down all formulas before starting each problem.
• Areas Related to Circles: Area of sector, length of arc, and area of segment. Problems combining circle areas with polygon areas inside the circle are frequent.

Commercial Mathematics and Time, Distance and Work (8 Marks)

• Instalment Buying: Calculating instalment amounts, total payment, and interest charged. Know both simple interest and compound interest formulas.
• Time, Work and Distance: Word problems on pipes and cisterns, speed-time-distance, and work shared between multiple persons.

Coordinate Geometry (8 Marks)

• Distance Formula: Distance between two points in the coordinate plane — a standard one-mark to two-mark question.
• Section Formula: Midpoint formula and internal division of a line segment.
• Area of Triangle: Using the coordinates of the three vertices to find the area.

Statistics and Probability (8 Marks)

• Mean: Direct method, assumed mean method, and step-deviation method from grouped frequency distribution tables. At least one data table question is expected.
• Probability: Classical probability — favourable outcomes over total outcomes. Card, dice, and ball problems are standard question types.

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Preparation Strategy Based on Chapter Weightage

With the MBSE HSLC Compartment Exam 2026 on June 30, 2026, use the marks distribution to build a focused day-wise revision plan rather than covering all units equally.

Scoring 36 or more marks from Algebra and Geometry alone is achievable with focused practice — that is already above the 33-mark passing threshold. Once those two units are solid, add Trigonometry and Mensuration to push your score comfortably higher. Use official MBSE sample papers available at mbse.edu.in to practise solving within the 3-hour time limit.