Class 8 Maths Part 1 Chapter 6, We Distribute, Yet Things Multiply, shows how the distributive property connects arithmetic and geometry to algebraic multiplication of binomials and the standard algebraic identities.
What Class 8 Maths Chapter 6 Covers
6.1 Some Properties of Multiplication examines how a product ab changes when a and b are incremented, and uses distributivity for fast mental multiplications (such as multiplying by 11, 99 or 101).
6.2 Special Cases of the Distributive Property derives (a + b)², (a − b)² and (a + b)(a − b) = a² − b² both algebraically and geometrically using area models.
6.3 Mind the Mistake and 6.4 All Ways Lead to the Bay spot common algebraic errors, model multi-step number and geometry patterns, and end with the 10-coin triangle inversion puzzle Coin Conjoin.
Exercises in Chapter 6
- Figure it Out exercise sets after each major section, with complete answer keys at the end of the chapter.
Read Class 8 Maths Chapter 6 Online
More Chapters
- Previous: Chapter 5: Number Play
- Next: Chapter 7: Proportional Reasoning-1
- Hindi medium: Class 8 Maths Part 1 Chapter 6 PDF in Hindi (Ganita Prakash)
- All Maths chapters and the other Class 8 books: Class 8 NCERT books 2026-27
- All Class 1 to 12 NCERT Textbooks: NCERT Books PDF (Class 1–12)
- Every book chapter by chapter: NCERT chapter wise PDF
FAQ
Which algebraic identities are derived in Ganita Prakash Chapter 6?
Identity 1: (a + b)(c + d) = ac + ad + bc + bd, along with the special cases (a + b)² = a² + 2ab + b², (a − b)² = a² − 2ab + b², and (a + b)(a − b) = a² − b².
What is the Coin Conjoin puzzle at the end of Chapter 6?
A triangle of 10 coins that can be inverted (turned upside down) by moving only 3 coins.