Скачать или смотреть Class 7 Math | Ch-6 Number Play | Figure it out Part 2| Page 143 - 144

Welcome to my Class 7 Mathematics series!
In this video, we are solving Chapter 6 – Number Play | Figure It Out Part 1 (Page 143–144) from Ganita Prakash.

We carefully go through each problem step by step:

1️⃣ Light bulb problem – What happens if Dorjee toggles a switch 77 times? Will the bulb be ON or OFF? Logical reasoning explained clearly.
2️⃣ Encyclopaedia puzzle – Can the sum of page numbers of 50 sheets be exactly 6000? Detailed explanation with examples.
3️⃣ 2×3 Grid Parity Puzzle – Using odd (‘o’) and even (‘e’) numbers to satisfy row and column parity conditions.
4️⃣ 3×3 Magic Square with 0 as the magic sum – Learn how to use positive and negative numbers to form a balanced square.
5️⃣ Odd–Even reasoning questions – Filling in the blanks to test your understanding of number properties.

👉 This video is perfect for Class 7 students, teachers, and anyone preparing for competitive math puzzles.
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📌 Covered Topics: Odd and even numbers, parity, logic puzzles, magic squares, problem-solving tricks.
📌 Source: Ganita Prakash, Grade 7, Chapter 6 (Number Play), Pages 143–144.