Quick Tips for CDS Mathematics Exam Preparation 2019

By Naveen Singh|Updated : July 17th, 2019

CDS Maths Preparation Tips: Elementary Mathematics, if prepared thoroughly, can prove to be the most scoring section of the CDS Exam. So, here are some important tips to prepare Mathematics section for the CDS exam. Read these CDS mathematics preparation tips well to understand how one should prepare for the math section of the CDS exam to score good marks!

Tips for the Mathematics section of CDS Exam

The paper III of CDS Examination is of Elementary Mathematics. This paper consists of 100 questions with 1 mark per question totalling to 100 marks. If a candidate has not followed General Knowledge rigorously, then mathematics paper can be an exam saviour. So try and give your best shot in this paper.

The paper is designed to test basic concepts of mathematics at matriculation level. Here are some general quick tips to prepare mathematics section of the CDS Exam:

  • A very simple but most important tip to solve questions of the maths section is to Read the Question Properly!. Numerous costly mistakes happen due to the improper reading of questions, in ways like, reading only the main text, not understanding the depth of questions or pre-assuming some similar type of problem attempted while practising, deviating the concentration from the question by thinking or jumping to another problem.
  • The strategy as mentioned in our previous article (Tips to crack the CDS Examination in the first attempt) is to solve the easy questions in the first attempt.
  • A perfect & synchronous balance of speed and accuracy is the key to success in the maths section of CDS exam.
  • Practice as many questions as you can from the previous year's papers, mock tests and any other source you may reach out to, in order to score well in UPSC Combined Defence service exam.

Recommended Reference Material:

For efficient preparation of the maths section of the CDS Exam, ‘Mathematics for CDS Entrance Examination by Dr R. S. Aggarwal’ and for more comprehensive study, NCERTs of 6th to 10th can be followed (please keep this as an option for studying only particular topics, otherwise you may end up wasting a lot of your valuable time).

Important Topics to focus on in the Maths section of CDS Exam

1. Number System:

  • Questions in this subsection comprise of topics like:
    (a) Basics of Number System
    (b) L.C.M. & H.C.F.
    (c) Surds and Indices
    (d) BODMAS
    (e) Remainders
  • One can refer to the NCERT books of the 9th-12th standard to understand the basic concepts of this topic.
  • A number of questions are usually asked from LCM/ HCF and Remainders. So, it is advisable to understand the correct approach to solve these questions, look for shortcuts (if any) and practice these topics thoroughly for the exam.
  • HCF & LCM: Understand the basics of highest common factor (HCF) and Lowest common multiples (LCM) among various numbers and the relationship of HCF and LCM of two numbers.

2. Arithmetic:

Questions in the arithmetic subsection consist of the under-mentioned topics:

  • Time, Speed and Distance
    Basic knowledge of speed, time and distance is the prerequisite here with an added emphasis on units of measurement as very frequently in the problem, the values can be switched from one unit of measurement to another.
  • Time and work-
    This topic requires some thorough study. The questions can be of a single person involved in some activity or a group of people working for a common goal. To solve these questions, you should be fluent in calculations of LCM, Unitary method etc.
  • Percentages
    It is one of the easiest topics to attempt in the maths section, however, the students should take care of silly mistakes in calculations.
  • Simple and Compound Interest-
    Questions from this topic usually require the application of basic formulas of SI, CI and Amount.
  • Profit and Loss-
    Again, this is an easy topic but do read the question properly since the language of the question can pose difficulty in identifying CP and SP if the product is repeatedly bought and sold among different people.
  • Ratio and Proportion-
    This is also an easy topic and the candidate won't have to invest too much of the time here.

3. Algebra:

Questions in Algebra will be asked from the following topics:

  • Quadratic equation-
    Questions of the standard form of two-degree quadratic equation, sum and product of roots etc are commonly asked from this topic.
  • Simultaneous Equations-
    This usually involves solving simultaneous equations involving two variables and practical problems which may lead to the formulation of simultaneous equations or inequalities.
  • Set Theory-
    Questions from this topic usually involve basic theorems of union and intersection in practical cases like a group of players playing hockey, cricket and football with some of the players playing only one, two, all or none of the games.
  • Law of Indices-
    This topic is similar to Logarithm and can be covered jointly.
  • Logarithm and its laws-
    This topic, if not comfortable with, should be referred from the material and preparing short notes of the same will be an added advantage for revising the topic in future.

4. Trigonometry:

  • Prepare basics of Sine, Cosine and Tangent, quadrant in which they are and trigonometric identities relating one trigonometric term to another.
  • Practical problems in form of height and distances using the application of trigonometric basics are commonly asked.

5. Geometry:

  • Lines-
    Prepare properties of lines like parallel and perpendicular lines etc.
  • Plane figures and Angles-
    Geometry is all about the angles hence be well versed with the related properties of various plane figures like triangles, rectangles, square, parallelogram and circles.

6. Mensuration:

Questions of this topic may involve following:

  • Areas of squares, rectangles, parallelograms, triangle and circle as well as the conversion of one form to other keeping a parameter constant.
  • Surface area and volume of cuboids, spheres, right circular cones, and cylinders etc. and problems related to finding a relationship between the dimensions of one figure to other keeping Surface area/Volume constant.
  • Practical problems of Surface area and Volumes, for example, an oil tank in form of a cylinder with half of the spheres on either side may be given in the question and the capacity of the oil tank may be asked.

7. Statistics:

  • Problems of histograms, bar charts, pie charts will require visual interpretation with some common sense rather than just in-depth knowledge.
  • Frequency Analysis- Logical presentation of the raw data to arrive at a definite result, for example, weights of ‘n’ number of students are given in the question and the students need to calculate the mean and median weight.

All the best for your exams,
Team gradeup!


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Kunal Kumavat
There are any pdf notes for math study
Alka Maheshwari
Hard work to di
Sumit Raj

Sumit RajJul 31, 2019

best practice set book for mts https://amzn.to/2Ygyx4c
Sushil Kumar

Sushil KumarSep 24, 2019

hii sir i cant unerdstand the maths subject sir so please request me shortcut keys trick for maths any best book sir
Anil Kumar

Anil KumarApr 19, 2020

thanks a lot for this.

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CDSCAPFAFCATTA ExamACC ExamOther ExamsPracticePreparation
tags :CDS & Defence ExamsElementary MathematicsCDS OverviewCDS Apply OnlineCDS VacancyCDS Eligibility CriteriaCDS Selection Process

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