A Square and A Cube Class 8 | Revision + 10 Short Tricks in 13 Min | CBSE 2026-27

Revise the complete Class 8 Maths Chapter 1 – A Square and A Cube (NCERT Ganita Prakash, Part I) in just 13 minutes, as per the latest CBSE syllabus 2026-27. Clear whiteboard explanations, solved NCERT examples, and 10 verified short tricks to find squares, square roots, cubes and cube roots fast. In this video: ✅ Queen Ratnamanjuri's locker puzzle – why square numbers have an odd number of factors ✅ Square numbers, perfect squares and their last digits ✅ Patterns: sums of odd numbers, triangular numbers, numbers between squares ✅ Square roots by prime factorisation and estimation ✅ Smallest number to multiply or divide to get a perfect square / cube ✅ Cube numbers, the taxicab number 1729 (Hardy–Ramanujan) ✅ Cube roots by prime factorisation – and in 3 seconds by the last-digit trick ✅ A pinch of history: varga, ghana, mula ✅ 10 short tricks + common mistakes + quick quiz ⏱️ Chapters 0:00 Introduction 0:19 What we'll revise (syllabus 2026-27) 0:38 Queen Ratnamanjuri's locker puzzle 1:21 Square numbers & perfect squares 1:51 Last digit of a square + Trick 1 2:45 Squares & odd numbers + Trick 2 3:23 Between two squares + Tricks 3, 4 4:08 Trick 5: squares of numbers ending in 5 4:41 Square roots by prime factorisation 5:18 Smallest multiplier/divisor + Trick 6 6:01 Estimating square roots + Trick 7 6:39 Cube numbers & their last digits 7:17 1729: the Hardy–Ramanujan taxicab number 7:49 Cubes & odd numbers + Tricks 8, 9 8:49 Cube roots by prime factorisation 9:26 Trick 10: cube root in 3 seconds 10:07 A pinch of history (varga, ghana, mula) 10:35 10 short tricks – one-page summary 11:05 Mistakes to avoid 11:27 Quick quiz (4 questions) 12:30 Summary & contact 🏫 Guidepoint Academy – coaching for Grades 8–12 (Maths, Science, Commerce) 📍 Office No. 203, Omran Tower, Al Qasimia, Sharjah, UAE 📞 Call / WhatsApp: 056 690 0311 | 050 512 2641 👍 Like, share with your friends and subscribe for more quick revision videos! #ASquareAndACube #Class8Maths #GanitaPrakash #CBSE #MathsTricks #GuidepointAcademy #Sharjah