## INTERNATIONAL VEDIC MATHEMATICS OLYMPIAD (IVMO)

Dear VM Enthusiast, The IAVM (Institute for the Advancement of Vedic Mathematics) will be running a competition in September  2020, the IVMO. It is an international competition that tests ability and speed in using Vedic mathematics techniques and their application…

ANNOUNCING INTERNATIONAL VEDIC MATHEMATICS OLYMPIAD (IVMO) Dear VM Enthusiast, The IAVM (Institute for the Advancement of Vedic Mathematics) will be running a competition in September  2020, the IVMO. It is an international competition that tests ability and speed in using…

## MSC #17- By Alternate Elimination and Retention

For the 17th MATH-Inic Special for Christmas, we are introducing the Vedic Math sub-Sutra, “By Alternate Elimination and Retention”.  In order to simplify solution of some problems, we sometimes ignore or temporarily eliminate some variables and retain only the others.…

## MSC #16 – Divisibility: Extending the Divisibility Rule for 9

The divisibility rule for 9 can be extended for divisors composed entirely of 9s like 99, 999, 9999 etc. The rule for 9 is that “If the sum of the digits of the number is divisible by 9, then the…

## MSC #15 – Divisibility: By Addition and by Subtraction

Our 15th MATH-Inic Special for Christmas deals with divisibility of numbers.   Grade school children are required to know by heart the divisibility rules for numbers such as 2, 3, 4, 5, 7,  8, 9, 10 and 11.  Also a…

## MSC #14 – Digit Sums: Casting Out 9s

All grade-school learners are taught that “a number is divisible by 9 if the sum of its digits is divisible by 9”. However, only a few are taught that there is no need to divide. If the digit sum has…

## MSC #13 – Short Division

Almost sixty years ago, I learned the “long” division method from my teachers at the San Roque (now Manuel Roxas) Elementary School in Cavite City. I often wondered why this is called as such when we were not taught the…

## 30 Master Strategies in Computing E-book, Vol 1

This e-book is the abridged version of the first of three volumes of the soon to be printed “30 Master Strategies in Computing” which was specially written to celebrate  the 30th anniversary of our school, MSC Institute of Technology. It…

## DEVELOPING DIVISIBILITY RULES FOR ANY DIVISOR

Yesterday, I read a post here in Facebook about a 12-year old Nigerian boy, Chika Ofili, who received a special recognition for discovering a new formula for divisibility by 7, while doing his holiday assignment. The book they are using…