## The First Algorithm in the World

“The Euclidean algorithm is the granddaddy of all algorithms, because it is the oldest nontrivial algorithm that has survived to the present day.” – Donald Knut

How to find the maximum tile side size for a rectangle floor, so that you don’t need to cut the tiles? More seriously, the Euclidean algorithm is an efficient method for computing the greatest common divisor of two numbers.
It is named after the ancient Greek mathematician Euclid, who first described it in Euclid’s Elements (c. 300 BC).
It is an example of an algorithm, a step-by-step procedure for performing a calculation according to well-defined rules, and is one of the oldest numerical algorithms in common use.

## Aplusclick Math Apps for Grades 1 Through 12 Are on Apple Store and Google Play

5000 A+Click Math Problems are available offline. If you have problems with Internet, Aplusclick has a solution for you. Aplusclick problems are now available on App Store and Google Play. You can solve all of 5000 problems working offline.

Aplusclick has just launched a series of apps for iPhone, iPad, and Android. It includes Math for grade 1 through 12. You can track your progress or reset your score anytime. Perfect practice makes perfect!

Where do you get it?

Online: www.aplusclick.com ,   iPhone or iPad,    Android: search for Aplusclick

## Wittygon – Game and Math Lesson

Aplusclick has just launched Wittiygon. It is a mix of Math practice and a logic game.

Aplusclick Logic Puzzle Wittygon is a free educational game for Very Intelligent People (VIP) in grades one through twelve and smart adults.

The game is free and ad-free.

In the Wittygon planetary system, the aim is to move a planet to a nearest neighbour in order to exchange positions. Match 4 or 5 planets in a row to win stars.  You win additional points if you correctly answer IQ Bonus Questions. The questions will be automatically adapted to your skills and motivation. The collection of the questions includes more than 400 logic questions, which don’t ask for special mathematical knowledge.

Where can you play?

Online: www.wittygon.com ,   iPhone or iPad,    Android:

Enjoy the challenge – become clever!

## The Great Pyramid Math

What is number of cubes in a the Great Pyramid, 100-cube high?

http://www.aplusclick.com

http://www.egyptorigins.org/numberofstones.htm

## A+Click 2014 Numbers

2014 Annual Statistics

4600+ challenging problems for students in grades one through twelve;

500,000+ sessions on websites http://www.aplusclick.com and http://www.aplusclick.ru in 2014;

5’30” is the average duration of a session;

190 countries: USA 45%; India 9%; Canada 7%; Australia 5%; UK 5%;

10,000+ cities: top cities are  Brisbane, Australia; Chicago, USA; New Delhi, India;

25% visitors via mobile or tablets;

500 stars is the Best Score of the A+Click Challenge in 2014. Suhas, Bangalore, India is the best performer of 2014.

100 Best Performers of the A+Click Challenge in 2014: USA – 28%; Cambodia – 26%; India – 15%; Canada – 6%.

2,000+ people passed IQ Test; 454 people scored over 100;

100+ suggestions from users;