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Question 1 - Page 130 - Parity - Chapter 6 Class 7 - Number Play - Ganita Prakash
Last updated at October 16, 2025 by Teachoo
Class 7 (Ganita Prakash 1, 2 & old NCERT)
Chapter 6 Class 7 - Number Play - Ganita Prakash
- Numbers can Tell us Things, Supercells
-
Parity
- Figure it out - Page 131
- Small Squares in Grids (Parity in Multiplication)
- Parity of Expressions
- Some Explorations in Grids
- Magic Square
- Figure it out - Page 136
- Generalising 3 × 3 Magic Square
- First ever 4 × 4 Magic Square
- Magic Squares in History and Culture
- Virahāṅka Fibonacci Numbers
- Digits in Disguise
- Figure it out - Page 143, 144
Transcript
Question 1 - Page 130 Explore what happens to the sum of (a) 4 odd numbers, (b) 5 odd numbers, and (c) 6 odd numbers. We can do this by grouping. Let’s do this one by one 4 odd numbers Adding 4 odd numbers (Odd + Odd) + (Odd + Odd) = Even + Even = (Even + Even) = Even (b) 5 odd numbers Adding 5 odd numbers (Odd + Odd) + (Odd + Odd) + Odd = Even + Even + Odd = (Even + Even) + Odd = Even + Odd = Odd (c) 6 odd numbers Adding 6 odd numbers (Odd + Odd) + (Odd + Odd) + (Odd + Odd) = Even + Even + Even = (Even + Even) + Even = Even + Even = Even
