Number Play Class 8 || Ganita Prakash || Number Play Chapter 5
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Number Play Class 8 || Ganita Prakash || Number Play Chapter 5
14 288 просмотров · 3 месяца назад
English Chatterbox
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14 288 просмотров · 3 месяца назад
Number Play Class 8 | Ganita Prakash | Number Play Chapter 5
Master Class 8 Maths Chapter 5 — Number Play! In this video, we break down every concept from the Ganita Prakash textbook in a clear, engaging way — from sums of consecutive numbers and parity rules to divisibility shortcuts for 9, 3, and 11, and cryptarithms. No memorisation — just deep understanding of why numbers behave the way they do.
📚 What's covered in this video:
Sum of consecutive numbers and the patterns they form
Why placing + and − signs between any 4 numbers always gives results of the same parity
Parity rules and how to identify even expressions without calculating
When two even numbers add up to a multiple of 4
Always, Sometimes, or Never True — divisibility statements
Remainders and algebraic expressions
Divisibility shortcuts for 3, 9, and 11 — and the logic behind them
Digital roots and their connection to divisibility
Divisibility by 6, 24, and other numbers using prime factorisation
Cryptarithms — solving digit puzzles through reasoning
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