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Tamil Nadu Board Class 10 Mathematics — Formula Sheet

Tamil Nadu Board Class 10 Mathematics formula sheet, chapter by chapter — 25 formulas across 6 chapters. Follows the TN DGE syllabus.

How to Use the Formula Sheet

  1. Write, don't just read — writing each formula out helps it stick.
  2. Understand the derivation — you can rebuild a formula you half-remember.
  3. Group related formulas — link the ones that build on each other.
  4. Test yourself — cover the sheet and write the formulas from memory.

Chapter-Wise Formulas — 6 Chapters

Euclid's Division Lemma: For any two positive integers a and b, there exist UNIQUE integers q and r such that a = bq + r, where 0 ≤ r < b.
N = p1^q1 × p2^q2 × p3^q3 × ... × pn^qn, where p1, p2,... are primes and q1, q2,... are natural numbers.
The full Numbers and Sequences formula sheet
3

Algebra

2 entries
A linear equation in three variables has the general form: ax + by + cz + d = 0
A quadratic equation has the form ax² + bx + c = 0 (a ≠ 0).
The full Algebra formula sheet
4

Geometry

2 entries
If DE || BC in △ABC, then AD/DB = AE/EC
Formula: c² = a² + b², where c is hypotenuse and a, b are the other two sides
The full Geometry formula sheet

3 more chapters below

Formula sheets for all 6 chapters with formulas.

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Get chapter-wise help for Tamil Nadu Board Class 10 Mathematics

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Frequently Asked Questions

Where can I find Tamil Nadu Board Class 10 Mathematics Formula Sheet?

This page has formula sheet for 6 chapters of Tamil Nadu Board Class 10 Mathematics for the board exams 2027. Each chapter links to its own page with the full set.

Go through the syllabus first, then work chapter by chapter: learn the ideas, practise questions, and revise with notes and flashcards. Leave time at the end to revise every chapter once more under timed conditions.

Learn the formulas you use most first, and understand what each symbol means so you can apply them. Knowing where a formula comes from helps you rebuild it if you forget it in the exam.

Browse Formula Sheet by Chapter

6 chapters

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