Preparing for the CDS Maths paper requires more than just solving questions—it demands clarity of formulas, time-saving tricks, and a consistent practice strategy. Since the exam is time-bound and includes a mix of Arithmetic, Algebra, Geometry, Mensuration, and Trigonometry, you need a structured approach.
Start by understanding the pattern using the CDS last year question papers. Analyze which topics are most frequent and which formulas are essential for scoring well.
What are the most important formulas for CDS Maths?
Here’s a quick CDS Maths formula sheet that you can use during your revision. These are the high-weightage topics frequently seen in CDS books with answers and mock tests.
|
Topic |
Key Formula/Shortcut |
|
Profit & Loss |
Profit% = (Profit/Cost Price) × 100 |
|
Speed, Time & Distance |
Speed = Distance / Time; Time = Distance / Speed |
|
Simple Interest |
SI = (P × R × T)/100 |
|
Compound Interest |
CI = P × (1 + R/100)ⁿ – P |
|
Time & Work |
Efficiency ∝ 1/Time; Total Work = LCM of given time values |
|
Average |
Average = (Sum of observations) / (Number of observations) |
|
Ratio & Proportion |
a:b = a/b; a:b = c:d ⇒ ad = bc |
|
Number System |
Divisibility Rules (e.g., by 2, 3, 5, 9); HCF & LCM tricks |
|
Geometry (Triangle) |
Area = ½ × base × height; Pythagoras Theorem: a² + b² = c² |
|
Trigonometry |
sin²θ + cos²θ = 1; tanθ = sinθ / cosθ |
Are there any shortcuts or tricks to solve CDS Maths questions faster?
Yes! Here are some smart shortcuts to solve questions more quickly:
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Use elimination method for MCQs—plug options into the question.
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For Time & Work, use the concept of units of work per day.
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In geometry, visualize figures—many answers become obvious.
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Learn multiplication tricks for 2-digit numbers to save time.
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Use Vedic Maths techniques for faster arithmetic.
Consistently applying these will improve your speed and accuracy, both of which are essential for scoring well in the math section.
Read More: Do CDS Question Papers Include Negative Marking?
How to practice effectively for the CDS Maths exam?
Follow this three-step plan:
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Concept Clarity: Review topics with concept-based practice.
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Previous Year Questions: Solve at least 5 sets of CDS last year question papers to familiarize yourself with the pattern and difficulty level.
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Mock Tests & Timed Practice: Try full-length mock tests using a stopwatch. This will simulate real exam pressure.
Always revise your errors and maintain a “mistake notebook” for commonly made calculation or concept errors.
Why is a formula sheet important for CDS Maths?
A formula sheet acts as a quick reference guide. Instead of flipping through bulky material, you can revise all key formulas in one go. It also saves time during the final days of your prep.
You can create your own or refer to the summary sheets found at the end of standard CDS maths book chapters. Keep this sheet handy during your last-minute revision to boost recall.
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Conclusion
The CDS Maths paper can be mastered with the right approach: memorize key formulas, use time-saving shortcuts, and consistently practice using CDS books with answers and past papers. With structured planning, what seems tough today becomes your scoring section tomorrow.
Make your preparation smart, not just hard—and you’ll be well on your way to clearing the CDS exam with confidence.
