CBSE Class 10 Mathematics Revised Syllabus 20202021
CBSE revised the syllabus of Class 10 Maths subject for the current academic year (20202021). The Board reduced the Class 10 Maths Syllabus to compensate for the loss of studies under the effect of COVID19 lockdown. Students must check this updated syllabus while studying Mathematics and preparing for their board exam. Like the previous academic session, Board Exam 2021 will again offer two versions of Mathematics paper to students, one easy and the other of the standard level. However, the syllabus for both types of papers remains common. So, all students are advised to refer to the latest syllabus while they prepare for their school and board examinations.
New* CBSE Class 10 Maths Sample Paper and Marking Scheme for Board Exam 2021 Released  Download in PDF
Contents of CBSE Class 10 Maths syllabus 20202021 are:
 Unitwise weightage
 Topics and subtopics to be prepared from each unit
 Question paper design for the annual board examination
 Components of Internal Assessment
 Prescribed books
CBSE had introduced certain changes in the Maths question paper structure in the board exam 2020. About 25% of the questions in the paper were of objective type with each carrying 1 mark. The same is expected to be followed in the next year's board examinations. For this, you can check the question paper design suggested by CBSE in this new syllabus.
Find below the complete CBSE Class 10 Maths Syllabus 20202021:
CBSE Class 10 Mathematics UnitWise Weightage
Units 
Unit Name 
Marks 
I 
NUMBER SYSTEMS 
06 
II 
ALGEBRA 
20 
III 
COORDINATE GEOMETRY 
06 
IV 
GEOMETRY 
15 
V 
TRIGONOMETRY 
12 
VI 
MENSURATION 
10 
VII 
STATISTICS & PROBABILITY 
11 

Total 
80 
Also Check: CBSE Class 10 Maths Deleted Topics from Syllabus for 202021
CBSE Class 10 Mathematics Course Structure:
UNIT I: NUMBER SYSTEMS
1. Real Numbers (8 Periods)
Fundamental Theorem of Arithmetic  statements after reviewing work done earlier and after illustrating and motivating through examples, Proofs of irrationality of
UNIT II: ALGEBRA
1. Polynomials (4 Periods)
Zeros of a polynomial. Relationship between zeros and coefficients of quadratic polynomials.
2. Pair of Linear Equations in Two Variables (11 Periods)
Pair of linear equations in two variables and graphical method of their solution, consistency/inconsistency.
Algebraic conditions for number of solutions. Solution of a pair of linear equations in two variables algebraically  by substitution, by elimination. Simple situational problems. Simple problems on equations reducible to linear equations.
3. Quadratic Equations (10 Periods)
Standard form of a quadratic equation ax^{2} + bx + c = 0, (a ≠ 0). Solutions of quadratic equations (only real roots) by factorization, and by using quadratic formula. Relationship between discriminant and nature of roots.
4. Arithmetic Progressions (4 Periods)
Motivation for studying Arithmetic Progression Derivation of the n^{th} term and sum of the first n terms of an A.P.
UNIT III: COORDINATE GEOMETRY
1. Lines (In twodimensions) (10 Periods)
Review: Concepts of coordinate geometry, graphs of linear equations. Distance formula. Section formula (internal division).
UNIT IV: GEOMETRY
1. Triangles (10 Periods)
Definitions, examples, counter examples of similar triangles.
1. (Prove) If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points, the other two sides are divided in the same ratio.
2. (Motivate) If a line divides two sides of a triangle in the same ratio, the line is parallel to the third side.
3. (Motivate) If in two triangles, the corresponding angles are equal, their corresponding sides are proportional and the triangles are similar.
4. (Motivate) If the corresponding sides of two triangles are proportional, their corresponding angles are equal and the two triangles are similar.
5. (Motivate) If one angle of a triangle is equal to one angle of another triangle and the sides including these angles are proportional, the two triangles are similar.
6. (Motivate) If a perpendicular is drawn from the vertex of the right angle of a right triangle to the hypotenuse, the triangles on each side of the perpendicular are similar to the whole triangle and to each other.
7. (Prove) In a right triangle, the square on the hypotenuse is equal to the sum of the squares on the other two sides.
2. Circles (8 Periods)
Tangent to a circle at, point of contact.
1. (Prove) The tangent at any point of a circle is perpendicular to the radius through the point of contact.
2. (Prove) The lengths of tangents drawn from an external point to a circle are equal.
3. Constructions (4 Periods)
1. Division of a line segment in a given ratio (internally).
2. Tangents to a circle from a point outside it.
UNIT V: TRIGONOMETRY
1. Introduction to Trigonometry (8 Periods)
Trigonometric ratios of an acute angle of a rightangled triangle. Proof of their existence (well defined). Values (with proofs) of the trigonometric ratios of 30^{o}, 45^{o} and 60^{o}. Relationships between the ratios.
2. Trigonometric Identities (10 Periods)
Proof and applications of the identity sin^{2}A + cos^{2}A = 1. Only simple identities to be given.
3. Heights and Distances: Angle of elevation, Angle of Depression. (8 Periods)
Simple problems on heights and distances. Problems should not involve more than two right triangles. Angles of elevation / depression should be only 30^{o}, 45^{o}, 60^{o}.
UNIT VI: MENSURATION
1. Areas Related to Circles (10 Periods)
Motivate the area of a circle; area of sectors and segments of a circle. Problems based on areas and perimeter / circumference of the above said plane figures. (In calculating area of segment of a circle, problems should be restricted to central angle of 60°, 90° only. Plane figures involving triangles, simple quadrilaterals and circle should be taken.)
2. Surface Areas and Volumes (8 Periods)
1. Surface areas and volumes of combinations of any two of the following: cubes, cuboids, spheres, hemispheres and right circular cylinders/cones.
2. Problems involving converting one type of metallic solid into another and other mixed problems. (Problems with combination of not more than two different solids be taken).
UNIT VII: STATISTICS AND PROBABILITY
1. Statistics (10 Periods)
Mean, median and mode of grouped data (bimodal situation to be avoided).
2. Probability (10 Periods)
Classical definition of probability. Simple problems on finding the probability of an event.
Also Check:
NCERT Book for Class 10 Maths  NCERT Solutions for Class 10 Maths
NCERT Book for Class 10 Science  NCERT Solutions for Class 10 Science
NCERT Book Class 10 Social Science  NCERT Solutions for Class 10 Social Science
NCERT Book for Class 10 English  NCERT Solutions for Class 10 English
NCERT Exemplar Solutions for Class 10 Maths
NCERT Exemplar Solutions for Class 10 Science
CBSE Class 10 Maths Question Paper Design
To know the typology of questions for Class 10 Maths Board Exam 2021, go through the question paper design given below as suggested by CBSE. It will be quite helpful to structure your study plan and work in a productive way.
MATHEMATICSStandard
Code (041)
QUESTION PAPER DESIGN
CLASS – X (202021)
Time : 3 Hours Max. Marks: 80
Internal Assessment 
20 Marks 
Pen Paper Test and Multiple Assessment (5+5) 
10 Marks 
Portfolio 
05 Marks 
Lab Practical (Lab activities to be done from the prescribed books) 
05 Marks 
MATHEMATICSBasic
Code (041)
QUESTION PAPER DESIGN
CLASS – X (202021)
Time : 3Hours Max. Marks: 80
Internal Assessment 
20 Marks 
Pen Paper Test and Multiple Assessment (5+5) 
10 Marks 
Portfolio 
05 Marks 
Lab Practical (Lab activities to be done from the prescribed books) 
05 Marks 
PRESCRIBED BOOKS:
1. Mathematics  Textbook for class X  NCERT Publication 
2. Guidelines for Mathematics Laboratory in Schools, class X  CBSE Publication 
3. Laboratory Manual  Mathematics, secondary stage  NCERT Publication 
4. Mathematics exemplar problems for class X, NCERT publication. 
Download CBSE Class 10 Maths Revised Syllabus 202021
We are giving below the link of the CBSE Class 10 Maths syllabus that was released in the beginning of the current academic session. You may check this syllabus to compare it with the reduced syllabus.
CBSE Class 10 Maths Old Syllabus 202021
Also Check: CBSE Class 10 Maths Complete Study Material and Guide for Preparation of Board Exam 2021