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Gujarat Board Class 8 Mathematics — Formula Sheet

Gujarat Board Class 8 Mathematics formula sheet, chapter by chapter — 18 formulas across 4 chapters. Follows the GSEB 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 — 4 Chapters

1

Rational Numbers

4 entries
Every integer is a rational number (e.g., -2 = -2/1).
Multiplication is commutative for rational numbers: a × b = b × a.
Multiplication is associative for rational numbers: a × (b × c) = (a × b) × c.
Zero is the additive identity for rational numbers because adding zero to any rational number gives back that same rational number: a + 0 = 0 + a = a.
The full Rational Numbers formula sheet
3

Understanding Quadrilateral

5 entries
The sum of all exterior angles of ANY polygon (convex) = 360°. This is true regardless of the number of sides.
For a regular polygon: Each exterior angle = 360° ÷ number of sides.
The sum of all interior angles of a quadrilateral = 360°.
PROPERTY 1 (Opposite Sides): The opposite sides of a parallelogram are equal in length. (AB = DC and AD = BC)
PROPERTY 3 (Adjacent Angles): The adjacent angles (co-interior angles) in a parallelogram are supplementary, i.e., they add up to 180°. (∠A + ∠B = 180°, ∠B + ∠C = 180°, etc.)
The full Understanding Quadrilateral formula sheet
4

Data Handling

3 entries
The total angle at the centre of a circle = 360°. All sector angles must add up to 360°.
Probability = 0 means the event is IMPOSSIBLE (e.g., getting 7 on a standard die).
Probability = 1 means the event is CERTAIN (e.g., getting a number between 1 and 6 on a standard die).
The full Data Handling formula sheet

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Formula sheets for all 4 chapters with formulas.

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Frequently Asked Questions

Where can I find Gujarat Board Class 8 Mathematics Formula Sheet?

This page has formula sheet for 4 chapters of Gujarat Board Class 8 Mathematics for the 2026-27 session. 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

4 chapters

1

Rational Numbers

3

Understanding Quadrilateral

4

Data Handling

5

Squares and Square Roots

More Mathematics Resources

Gujarat Board Class 8

Practice Quiz

Test yourself with quick quizzes

Important Questions

Exam-style questions with answers

Revision Notes

Key concepts and quick revision points

Chapter Summary

Understand each chapter at a glance

Concept Maps

Diagrams showing how topics connect

Syllabus

Chapter list and the topics in each