CBSE Deleted Syllabus For Class 10 Maths: Syllabus is one of the most important things if you need to score good marks in your board examinations. Being updated with the current syllabus and preparing the study flow according to the syllabus and time remaining is very important for the students. Maths is a concept based subject so if you’re concepts are clear you can score very good marks in this subject and for that practice is the key and ultimately entire syllabus should be known so that you can practice well on the topics which is in the syllabus.
CBSE Class 10 Maths Deleted Syllabus 2020
As during the current Covid19 situation, schools and students got a major hit in their education, the level of study and the mode of study. CBSE considered all this and decided to reduce the syllabus for each class by 30% accordingly. For this examination year, the reduced syllabus will be used for preparing board examinations this academic year. Here, you will see the standard weightage of marks for each unit and the deleted topics from each unit.
The table shown below shows the weightage of marks to each unit in CBSE Maths 2020 subject according to CBSE:
UNITS  UNIT NAME  MARKS 
I  Number System  06 
II  Algebra  20 
III  Coordinate Geometry  06 
IV  Geometry  15 
V  Trigonometry  12 
V  Mensuration  10 
VI  Statistics & Probability  11 
Total  80 
Deleted topics from the syllabus as given by Maths CBSE Syllabus 2020
CHAPTER  TOPICS REMOVED 
UNIT – I NUMBER SYSTEMS  
REAL NUMBERS  Euclid’s division lemma 
UNITII ALGEBRA  
POLYNOMIALS  Statement and simple problems on division algorithm for polynomials with real coefficients. 
LINEAR EQUATION IN TWO VARIABLES  Cross multiplication method 
QUADRACTIC EQUATIONS  Situational problems based on equations reducible to quadratic equations 
ARITHEMETIC PROGRESSIONS  Application in solving daily life problems based on sum to n terms 
UNITIII COORDINATE GEOMETRY  
COORDINATE GEOMETRY  Area of triangle 
UNIT IV GEOMETRY  
TRIANGLES  Proof of the following theorems are deleted
· The ratio of the areas of two similar triangles is equal to the ratio of the squares of their corresponding sides. · In a triangle, if the square on one side is equal to sum of the squares on the other two sides, the angle opposite to the first side is a right angle.

CONSTRUCTIONS  Construction of a triangle similar to a given triangle. 
UNITV TRIGONOMETRY  
INTRODUCTION TO TRIGNOMETRY  Application of Heron’s Formula in finding the area of quadrilateral. 
TRIGNOMETRIC IDENTITIES  Trigonometric ratios of complementary angles 
UNITVI MENSURATION  
AREA RELATED TO CIRCLES  Problems on central angle of 120° 
SURFACE ARE & VOLUME  Frustum of a cone 
UNITVI STATISTICS & PROBABILITY  
STATISTICS  · Step deviation Method for finding the mean
· Cumulative Frequency graph
