VIDEO: What is Number 8’s Divisibility Rule? This Maths Teacher has a New Answer!

Mathematics teacher Sursinh Parmar took the question of a young student so seriously, that he figured out a new method to solve a complex problem: the divisibility rule of number 8.

By TBI Team

September 14, 2016

Mathematics teacher Sursinh Parmar took the question of a young student so seriously, that he figured out a new method to solve a complex problem.

Learn the new method in this video:

Transcript

This math teacher’s innovative solution to number 8’s divisibility rule just won him an award!

Sursinh Parmar is a mathematics teacher from Saurashtra. A student’s question led him to discover a new method to number 8’s divisibility rule. His method uses 2 simple rules:

For example, to check the divisibility of 1,23,632 by 8

1,23,6 (32) = (8×4)

The last two digits must be a multiple of 4

8 & 6 are both even numbers

The multiplier & the digit in the hundredth’s place must both be ODDxODD or EVENxEVEN

1,23,632 is a multiple of eight

Example 2

12,12,116

12,12,1 (16) =(4 x 4)

4 is even, 1 is odd

12,12,116 is not a multiple of 8

Parmar was recently given the ‘Innovative Teacher’ award by the Indian Institute of Management, Ahmedabad for his new findings

A simpler method for problem solving!

Like this story? Or have something to share? Write to us: [email protected], or connect with us on Facebook and Twitter (@thebetterindia).

Similar Story

How These Twins Helped Their Dad Cope With Grief Will Break & Warm Your Heart!

Posted by Humans of Amdavad on Facebook, this is the real-life story of Dhruvi and Dhrumi, twin sisters from Ahmedabad.

If you found our stories insightful, informative, or even just enjoyable, we invite you to consider making a voluntary payment to support the work we do at The Better India. Your contribution helps us continue producing quality content that educates, inspires, and drives positive change.

Choose one of the payment options below for your contribution-

₹201 ₹501 ₹1001

By paying for the stories you value, you directly contribute to sustaining our efforts focused on making a difference in the world. Together, let's ensure that impactful stories continue to be told and shared, enriching lives and communities alike.

Thank you for your support. Here are some frequently asked questions you might find helpful to know why you are contributing?