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Question 5 - Page 132 - Parity of Expressions - Chapter 6 Class 7 - Number Play - Ganita Prakash
Last updated at October 16, 2025 by Teachoo
Parity of Expressions
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 5 - Page 132 Are there expressions using which we can list all odd numbers? Odd numbers are 1, 3, 5, 7, 9, …. Even numbers are 2, 4, 6, 8, 10, …. Thus, we can just subtract 1 from all even numbers to get odd numbers So, we can write expression for odd numbers 2n – 1 where n = 1, 2, 3, 4,..
