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
Mathematics has beauties of its own. - J.W.A. Young

Obvious: The most dangerous word in mathematics - Daffynitions joe-ks.com

Algebra: Undergarment worn by female math teachers - Daffynitions joe-ks.com

I've won at every level, except college and pro. - Shaquille O'Neal

Bison: What you say when your child leaves for school - Daffynitions joe-ks.com

Most every dental school has discount dental services. - Matthew Lesko

I am an expert in Higher Level Math: You + God = Enough - Zig Ziglar

Conflict Of Interest: A dental school with a hockey team - Daffynitions joe-ks.com

You can drag my body to school but my spirit refuses to go. - Bill Watterson

A college education shows a man how little other people know. - T.C. Hailburton

God made the Idiot for practice, and then He made the School Board. - Mark Twain

Texas is now a cornerstone of the electoral college for Republicans. - Ed Gillespie

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

Law school is the opposite of sex. Even when it's good it's lousy. - Unknown

Like the crest of a peacock, so is mathematics at the head of all knowledge. - Indian Proverb

College Education: A four-year plan for confusing a young mind methodically. - Daffynitions joe-ks.com

I'm not buying my kids an encyclopedia. Let them walk to school like I did. - Yogi Berra

Let us grant that the pursuit of mathematics is a divine madness of the human spirit. - Alfred Whitehead

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

Mathematics is a game played according to certain simple rules with meaningless marks on paper. - David Hilbert

If I feel unhappy, I do mathematics to become happy. If I am happy, I do mathematics to keep happy. - Alfred Renyi

I learned law so well, the day I graduated I used the college, won the case, and got my tuition back. - Fred Allen

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

For the execution of the voyage to the Indies, I did not make use of intelligence, mathematics or maps. - Christopher Columbus

Smartness runs in my family. When I went to school I was so smart my teacher was in my class for five years. - George Burns

What if the kid you bullied at school, grew up, and turned out to be the only surgeon who could save your life? - Lynette Mather

You can go your whole life and not need math or physics for a minute, but the ability to tell a joke is always handy. - Garrison Keillor

There are advantages to being President. The day after I was elected, I had my high school grades classified Top Secret. - Ronald Reagan

In my last year of school, I was voted Class Optimist and Class Pessimist. Looking back, I realize I was only half right. - Jack Nicholson

Mathematics is indeed dangerous in that it absorbs students to such a degree that it dulls their senses to everything else. - Prinz zu Hohlenlohe-Ingelfingen Kraft

Understand the key factors in the math behind viral marketing, and use those to figure out what it takes to get viral growth. - David Skok

The Arc de Triomphe, the Eiffel Tower. They're monumental. They're straight out of Page 52 in your school history book. - Billy Crystal

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

My son really has the spirit of Valentine's Day. When he was in college, he used to send his mother a heart-shaped box of laundry. - Milton Berle

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 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

Mathematics began to seem too much like puzzle solving. Physics is puzzle solving, too, but of puzzles created by nature, not by the mind of man. - Maria G. Mayer

With the steady disintegration of the family in modern society over the last century, the role of the school in bridging the gap has become vital. - Stephen Covey

I was thrown out of college during my freshman year, for cheating on my metaphysics final - I looked within the soul of the boy sitting next to me. - Woody Allen


see also   College,  Puzzle  &  School  Sections
Canadian Math
Chair Ruler
Chocolate Math
College Math Creativity
Dancing Mathematician
Detroit High School - Math Proficiency Exam
Hangman Math
Hot Dog Math
Kwik-Mart Math
Long Math Class
Math Clock
Math Dice
Math in Africa
Math Mug
Math Riddle
Math Watch
Mennonite Longhand Math
Redneck Math
suJoku Puzzles
WalMart Math

 

Baseball Photobomb

Great Quotes (B)

Wayne's Fish

If You're Happy And You Know It

Deer Hunter Tattoo

Nope, Didn't See A Thing

Man Sues Wife Over Make-Up

Down Under Bronco Riding For Kids

Re-Ewes Me

It's A Keeper

Plankstanders

Millionaire Women

Laptop Cooler

Scan Scam

Motorcycle Taxi

I've Got Time

Clangeroo

Redneck Cooler

Instead Of Flowers

Mt. Rushmore from the Canadian Side
Full list of creditsFacebookTwitterDiggStumbleUponDelicious

25-Jul-2021