To crack the NDA 2026 maths paper in the final 100 days may look challenging for defence aspirants. But with the right strategy, consistency and expert guidance, aspirants can secure excellent marks. The maths paper carries 300 marks, and scoring high in it significantly improves your overall merit and enhances your scoreboard too.
This guide breaks down a realistic, simple and highly effective study plan especially designed for NDA aspirants. With support from Shield Defence Academy, many students have turned their final 100 days into their biggest advantage. Let’s understand how you can do the same.
Why Do the Last 100 Days Matter the Most?
The last 100 days are crucial because of many reasons that are listed below –
- Your concepts are mostly covered.
- You shift from studying everything to studying smart.
- You focus more on practice, mock tests, and accuracy.
- Your confidence and exam temperament are built during this phase.
A well-planned 100-day strategy can turn an average performer into a topper.
Paper Pattern of NDA 2026 Maths
| Section | Marks | Questions |
| Algebra | 75–80 | 25–28 |
| Coordinate Geometry | 50–55 | 10–12 |
| Trigonometry | 70–75 | 20–22 |
| Calculus | 60–65 | 18–20 |
| Vector Algebra | 15–20 | 5–6 |
| Statistics & Probability | 20–25 | 5–6 |
Understanding the pattern is the first step toward scoring full marks. Make sure to not skip this.
100-Day NDA 2026 Maths Strategy by Shield
Day 1–30 – Strengthen the Foundation
Focus on concept clarity and chapter revision
- Revise NCERT-based topics – algebra, quadratic equations, trigonometric identities, sets and relations.
- Make short notebooks for formulas.
- Identify 5 to 7 weak chapters.
- Practise a minimum of 100 questions daily.
- Solve previous years’ UPSC NDA maths questions.
Advantages of Shield Defence Academy – Shield Defence Academy provides chapter-wise notes, simple formula sheets and faculty-guided conceptual classes that help students revise faster and smarter.
Day 31 to 60 – Maximum Practice
Focus on the Improvement of speed as well as accuracy
- Start solving full-length sectional tests.
- Practise mixed questions from SDA daily assignments.
- Complete a minimum of 40 NDA Maths PYQs.
- Target 85 to 90% accuracy.
- Solve timed quizzes to build exam temperament.
Important tip for defence aspirants from us – Even if you know a concept, solving under time pressure helps simulate actual exam conditions.
Day 61 to 90 – Mock Test Phase
Focus on real exams like training. Which includes a multitude of things like –
- Appear for full-length NDA mock tests every 2 to 3 days.
- Analyse mistakes after each test.
- Maintain an error notebook that is very important.
- Improve strong chapters to scoring level.
- Learn shortcut methods taught at Shield Defence Academy.
Advantages of Shield Defence Academy – the test series of ours mirrors the exact UPSC pattern and is made to help students confidently face the real exam scenario.
Day 91 to 100 – High Intensity Smart Revision
Focus on final polishing. That help to score good.
- Revise all formulas and identities daily.
- Practice 10 to 12 mixed tests.
- Stop learning new topics.
- Focus entirely on strong areas.
- Maintain proper sleep and routine.
If you utilise these last 10 days well, your score can jump by 40 to 60 marks definitely.
Top NDA 2026 Maths Chapters to Score High in 100 Days
| High-Scoring Chapters | Weightage |
| Trigonometry (Heights, Distances) | Very High |
| Algebra (Quadratics, Matrices) | High |
| Calculus (Derivatives, Integrals) | High |
| Coordinate Geometry | Medium |
| Vector Algebra | Medium |
| Probability and Statistics | Medium |
These chapters contribute to almost 70% of the paper.
How to Crack NDA 2026 Maths in the Last 100 Days: Smart Tips
-
Focus on Formulas Daily
Mathematics is 50% formulas and 50% application.
Review formulas for –
- Trigonometry
- Algebra
- Calculus
- Coordinate geometry
-
Practice a minimum of 200–250 questions per day.
The more you practise, the better your NDA Maths score becomes, and this builds both accuracy and confidence.
- 70% easy-medium questions
- 30% tough questions
-
Solve Previous Year Papers which is Non-Negotiable
UPSC repeats the pattern, difficulty level and question style. Solving 10 years PYQs helps you understand –
- Which topics are frequently repeated
- The expected difficulty level
- How to manage exam pressure
-
Attempt Mock Tests Like the Real Exam
Sit for mock tests to recreate exam-day discipline.
- At 10:00 AM, the same as NDA timing
- Without breaks
- Without using calculators
-
Strengthen Weak Areas
In the first 50 days, fix weaknesses in these following topics, and remember strong basics = high marks.
- Trigonometry
- Algebra
- Differentiation
- Matrices
- Probability
-
Learn Smart Shortcuts
Shield Defence Academy teaches methods, and it will help save precious exam time.
- Vedic Maths basics
- Speed solving
- Linear shortcut methods
- Smart elimination
-
Maintain 85 to 90% Accuracy
Remember, NDA Maths has negative marking. It is better to attempt 80 questions correctly than 120 with errors.
Why Coaching Matters in the Last 100 Days?
Choosing self-study is good, but guidance improves direction and speed.
A top NDA coaching like Shield Defence Academy provides –
- Mentored classes
- NDA-targeted 100-day math plan
- Daily practice sheets
- Weekly mock tests
- Doubt-clearing sessions
- Personal tracking and guidance
These features help aspirants finish the syllabus and strengthen exam skills effectively.
Special 100-Day NDA 2026 Maths Program by Shield Defence Academy
It includes –
- Daily NDA Maths Problem-Solving Sessions
- Focused on exam-level practice.
- Short Notes and Formula Book
- Perfect for quick revision.
- 60+ NDA Maths Mock Tests
- Improves exam temperament.
- PYQ-Based Practice Sessions
- Boosts accuracy and familiarity.
- Regular Doubt Clearing
- Ensures complete clarity.
- Personal Mentor Support
Helps maintain discipline and consistency.
Because of this structured approach, Shield Defence Academy has consistently produced NDA qualifiers with strong maths scores.
Daily 3-Hour NDA 2026 Maths Study Routine
| Time | Task |
| 1 hour | Revise formulas and concepts |
| 1 hour | Solve practice questions |
| 1 hour | Attempt timed quizzes / mock sections |
This routine is easy to follow and extremely productive.
Mistakes to Avoid in the Last 100 Days
- Starting new topics in the last 10 days
- Not analysing mistakes
- Too many resources, no consistency
- Not solving mocks
- Ignoring formula revision
- Panicking due to tough questions
Avoiding these mistakes alone can increase your marks by 50 to 60.
Your 100 Days Can Change Your Result
Cracking the NDA 2026 Maths paper is completely possible if you follow a disciplined, smart and structured plan. Use these 100 days to revise, practice, attempt mocks and improve accuracy. With guidance from Shield Defence Academy, thousands of aspirants have improved their confidence, speed and exam performance, and you can be the next one. If you want personalised coaching, mock tests and a powerful 100-day crash programme. Shield Defence Academy is the right place to start your preparation.
