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Question 2 - Figure it out - Page 72, 73 - Chapter 3 Class 6 - Number Play (Ganita Prakash)
Last updated at August 8, 2026 by Teachoo
Class 6 (Ganita Prakash & Old NCERT)
Chapter 3 Class 6 - Number Play (Ganita Prakash)
- Numbers can Tell us Things, Supercells,
- Supercells
- Supercells in a grid (Page 58)
- Patterns of Numbers on the Number Line, Playing with Digits
- Playing with Digits
- Pretty Palindromic Patterns
- The Magic Number of Kaprekar
- Clock and Calendar Numbers
- Figure it out - Page 64, 65
- Mental Math
- Playing with Number Patterns, and Collatz Conjecture!
- Simple Estimation
- Estimate the answer - Page 70, 71
- Games and Winning Strategies
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Figure it out - Page 72, 73
- Teachoo Questions - MCQs
- Teachoo Questions - Mix
- Teachoo Questions - Assertion Reasoning
- Teachoo Questions - Case Based
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Transcript
Question 2 How many rounds does your year of birth take to reach the Kaprekar constant?Let’s assume you were born in 2013 Let’s follow the steps Arrange the digits to create the largest and smallest possible numbers. Largest number (A): 3210 Smallest number (B): 0123 Subtract the smaller number from the larger one. 3210 - 0123 = 3210 – 123 = 3087 2. Repeat the process with the new number (5085). Largest number: 8550 Smallest number: 0558 Subtraction: 8730 - 0378 = 8730 – 378 = 8352 3. Repeat again with the new number (8352). Largest number: 8532 Smallest number: 2358 Subtraction: 8532 - 2358 = 6174 Thus, after 3 rounds, we have arrived at 6174, Kaprekar's constant.
