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ICSE Class 8 Mathematics — Formula Sheet

ICSE Class 8 Mathematics formula sheet, chapter by chapter — 209 formulas across 24 chapters. Follows the ICSE / ISC 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 — 24 Chapters

1

Rational Number

9 entries
p/q where p, q are integers and q ≠ 0
0 = 0/1
p/q = (p × m)/(q × m) = (p ÷ m)/(q ÷ m)
a/b = c/d ⇒ a × d = b × c
a/b + (-a/b) = 0
The full Rational Number formula sheet
2

Exponents

21 entries
x^n
x \times x \times x \times \dots \text{ n times } = x^n
x^{-n} = 1/x^n
a^m \times a^n = a^{m+n}
a^m / a^n = a^{m-n}, if m > n
The full Exponents formula sheet
3

Squares and Square Roots

7 entries
Perfect square = product of equal pairs of prime factors
Square root by prime factors
Square root via index form: √(a^m × b^n) = a^(m/2) × b^(n/2)
Square root of a fraction: √(a/b) = √a / √b
The symbol of square root is √.
The full Squares and Square Roots formula sheet

21 more chapters below

Formula sheets for all 24 chapters with formulas.

Get the Formula Sheets

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Frequently Asked Questions

Where can I find ICSE Class 8 Mathematics Formula Sheet?

This page has formula sheet for 24 chapters of ICSE 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

24 chapters

1

Rational Number

2

Exponents

3

Squares and Square Roots

4

Cubes and Cube Roots

5

Playing With Numbers

6

Sets

7

Percent and Percentage

8

Profit, Loss and Discount

9

Interest

10

Direct and Inverse Variations

11

Algebraic Expressions

12

Identities

13

Factorisation

14

Linear Equations in one Variable

15

Linear Inequations

16

Understanding shape

17

Special Type of Quadrilaterals

18

Constructions (Using Ruler and Compass only)

19

Representing 3-D in 2-D

20

Symmetry (Including Reflection and Rotation)

21

Circles

22

Area of a Trapezium and a Polygon

23

Surface Area, Volume and Capacity

25

Probability

More Mathematics Resources

ICSE 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

Study Plan

Week-by-week preparation schedule

Flashcards

Quick-fire cards for active recall practice

Syllabus

Chapter list and the topics in each

Other ICSE Class 8 Subjects

PhysicsChemistryBiologyGeographyEnglish Language: Grammar and CompositionComputer Studies