MTAP Review: Grades 1-3
Answers to selected MTAP Questions: Grade 1 MTAP questions: 1. I started counting from 11 to 28, 11, 12, 13 …27, 28. The first number I counted was 11 and the last number was 28. How many numbers did I count…
MSC #18 – The First by the First and the Last by the Last
The Vedic Math sub-Sutra, “First by the First and the Last by the Last”(FFLL) has varied applications in Mathematics. When adding whole numbers in a column, we align the numbers by their last digits. Many divisibility tests require that we…
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…
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…
MSC #12 – Base Division
For our 12th MATH-Inic Special for Christmas, we will now show how we can use a base to make division easier. It would be difficult to solve our example, 12,014 ÷ 89, using long division because of the large digits…