# Ethiopian Math

## Halved or Doubled - the answer is always right!

Ethiopian tribesmen can only double or halve numbers - by using pebbles as counters. By halving and doubling, they take any two numbers, multiply them and come out with the right answer.

For example, if a tribesman wants to buy 13 sheep at 15 Ethiopian dollars each, here's how he works it out...

Put 13 in a left column, and 15 in a right column. Halve the left figure - you get 6 1/2... ignore the 1/2 (Ethiopians don't know anything about fractions). Double the right-hand figure. Keep this up until the left-hand figure is 1. You should now have:

13     15
6      30
3      60
1    120

Even numbers in the left column are evil to the superstitious tribesmen, and must be destroyed - together with their guilty partners. So scratch out 6 and its partner 30. Now add the right-hand column and you have the correct answer: 195. Try this with any two numbers - it doesn't matter which side is halved or doubled - the answer is always right! The Ethiopian's primitive mind simply cannot grasp how our system works. Of course you see at once how this joe-k works... Or do you?

QuotaBills
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Mathematics: the only subject that counts. - Unknown

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Math, it's a puzzle to me. I love figuring out puzzles. - Maya Lin

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Dear Math: I'm not a therapist. Solve your own problems. - Unknown

Example is the school of mankind, and they will learn at no other. - Edmund Burke

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I was a great student at a great school, Wharton School of Finance. - Donald Trump

The older a man gets, the farther he had to walk to school as a boy. - Henry Brightman

Walking has been ridiculous in college basketball the past 15 years. - Bobby Knight

Mathematics consists of proving the most obvious thing in the least obvious way. - George Polya

Perhaps the most surprising thing about mathematics is that it is so surprising. - E.C. Titchmarsh

Education is what remains after one has forgotten what one has learned in school. - Albert Einstein

I had a terrible education. I attended a school for emotionally disturbed teachers. - Woody Allen

The college graduate is presented with a sheepskin to cover his intellectual nakedness. - Robert M. Hutchins

I can get motivated seeing a kid at my son's school overcome a learning disability. - Jason Alexander

Do not worry about your difficulties in mathematics. I can assure you mine are still greater. - Albert Einstein

If everybody in the world dropped out of school, we would have a much more intelligent society. - Jaden Smith

It's not uncommon to see kids on the school bus reading books and doing homework on the bus. - Anthony Amero

I must study politics and war that my sons may have the liberty to study mathematics and philosophy. - John Adams

True terror is to wake up one morning and discover that your high school class is running the country. - Kurt Vonnegut

Mathematics is distinguished from all other sciences except only ethics, in standing in no need of ethics. - Charles Peirce

It used to take me all vacation to grow a new hide in place of the one they flogged off me during school term. - Mark Twain

In school, every period ends with a bell. Every sentence ends with a period. Every crime ends with a sentence. - Steven Wright

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Mathematics is like checkers in being suitable for the young, not too difficult, amusing, and without peril to the state. - Plato

I went to a Catholic boys' school for a year, but that was to play hockey. Religion class was quite contentious for me. - Keanu Reeves

A formal manipulator in mathematics often experiences the discomforting feeling that his pencil surpasses him in intelligence. - Howard Eves

Mathematics may be defined as the subject in which we never know what we are talking about, nor whether what we are saying is true. - Rene Descartes

Doctors are saying that each piece of bacon you eat takes 9 minutes off of your life. Based on that math, I should have died in 1732. - Unknown

As far as the laws of mathematics refer to reality, they are not certain; and as far as they are certain, they do not refer to reality. - Albert Einstein

A man who has never gone to school may steal from a freight car; but if he has a university education, he may steal the whole railroad. - Theodore Roosevelt

Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness where the explorers often get lost. - W.S. Anglin

I love to play hide and seek with my kid, but some days my goal is to find a hiding place where he can't find me until after high school. - Unknown

I was named the Class Clown in the high school yearbook, so I was always turning to comedy and laughter to heal and to get me through things. - Guillermo Diaz

I tell them that if they will occupy themselves with the study of mathematics they will find it the best remedy against the lusts of the flesh. - Thomas Mann

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