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Syllabus

Identities — Syllabus

ICSE · Class 8 · Mathematics

What Identities covers in ICSE Class 8 Mathematics: 4 topics, for the 2026-27 session. Part of the ICSE Class 8 Mathematics syllabus.

75 questions28 flashcards7 formulas & key relations5 concepts

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4 Topics · ICSE Class 8 Mathematics · 2026-27

Topics in Identities

1

1. Identity and Special Products

  • An identity gives the same value on the left-hand side and the right-hand side for every valid value of the variable.
  • Special products are multiplications of certain expressions that can be done by a direct or shortcut method.
  • The four special products of two binomials depend on the sign pattern of the terms.
2

2. Expansion of Squares

  • Expansion means multiplying an expression with itself to get its second, third, or higher power.
  • The square of a sum has a positive middle term.
  • The square of a difference has a negative middle term.
3

3. Cubes of Binomials

  • The cube of a binomial is the product of a binomial with its square.
  • Both cube formulas have four terms.
  • The sign pattern must be followed exactly.
4

4. Application of Identities

  • Identities are useful for finding missing values when some terms are already given.
  • Square identities help find a^2 + b^2, ab, a + b, and a - b.
  • Three-term square identities help find ab + bc + ca.

Key Concepts

Central concept: Identities

IdentitySpecial ProductsProduct of two binomialsDifference of squaresSquare identitiesCube identitiesApplication of formulae

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Frequently Asked Questions

What are the important topics in Identities for ICSE Class 8 Mathematics?
Key topics in Identities include Identity and Special Products, Expansion of Squares, Cubes of Binomials, Application of Identities. Study these first, then practise questions on each for Class 8 exams.
How should I revise Identities for Class 8 exams?
Learn the core ideas first, then work through the 75 practice questions on Identities. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All ICSE Class 8 Mathematics Syllabus

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