Use the table below and follow these steps to find the answer to a multiplication problem. 1) Pick a number from the top row (in bold), let’s choose 6. 2) Pick another number, this time from the left column (also in bold), let’s choose 4. 3) From 4, move right until you find the box that lines up with the 6 in the top row. That box has 24 in it, this is the answer since 6 x 4 = 24.
| Ч | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | ...
A prime number can be divided, without a remainder, only by itself and by 1. For example, 17 can be divided only by 17 and by 1.
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Some facts:
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In November 1902, President Theodore Roosevelt and some of his friends went on a hunting trip to Mississippi. After hours of searching, Roosevelt and his group had not come across any wild animals. Finally, the group did track down and surrounded a helpless bear. One of the guides asked the president to shoot the bear so he could win a hunting trophy. The president refused, and news reporters throughout the country spread the story of Roosevelt's kind act.
Not long after this took place, a famous...
The following table lists the tallest buildings in the world by height. The Burj Khalifa, completed in January 2010, tops the list. NOTE: This list includes only buildings.2 For towers, see World's Tallest Towers. See also Skyscraper History, Skyscraper Facts, and America's Favorite Structures.
People have put together many lists of the seven ancient wonders of the world. But this “seven wonders” list celebrates monumental engineering and construction feats of the 20th century. It was chosen by the American Society of Civil Engineers.
Empire State Building. Finished in 1931, it towers 1,250 ft over New York City. Until the first tower of the World Trade Center was finished in 1972, it was the world's tallest building.
 The Empire State Building |
Itaipu Dam. Built by Brazil and Paraguay on the Paranб River, the dam is the world's largest hydro...
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The ancient Egyptians and Romans used black for mourning, as do most Europeans and Americans today.
The “Blackshirts” were the security troops in Hitler's German army, also known as the S.S.
Black often stands for secrecy.
Black humor is morbid or unhealthy and gloomy humor.
A “blackhearted” person is evil.
If a business is “in the black,” it is making money.
A “blacklist” is a list of persons or organizations to be boycotted or punished.
Black is associated with sophistication and elegance. A “black tie” event is formal.
A black belt in karate identifies an expert.
A black flag in a car race is t...
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In Egypt and Burma, yellow signifies mourning.
In Spain, executioners once wore yellow.
In India, yellow is the symbol for a merchant or farmer.
In tenth-century France, the doors of traitors and criminals were painted yellow.
Hindus in India wear yellow to celebrate the festival of spring.
If someone is said to have a “yellow streak,” that person is considered a coward.
In Japan during the War of Dynasty in 1357, each warrior wore a yellow chrysanthemum as a pledge of courage.
A yellow ribbon is a sign of support for soldiers at the front.
Yellow is a symbol of jealousy and deceit.
In the Middl...
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In ancient Rome, public servants wore blue. Today, police and other public servants wear blue.
In Iran, blue is the color of mourning.
Blue was used as protection against witches, who supposedly dislike the color.
If you are “true blue,” you are loyal and faithful.
Blue stands for love, which is why a bride carries or wears something blue on her wedding day.
A room painted blue is said to be relaxing.
“Feeling blue” is feeling sad. “Blue devils” are feelings of depression.
Something “out of the blue” is from an unknown source at an unexpected time.
A bluebook is a list of socially prominent people...
We live in a colorful world. In many countries, colors represent various holidays; they are also used to express feelings and enliven language. Find your favorite color and see what it means around the world.
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For the ancient Romans, a red flag was a signal for battle.
Because of its visibility, stop signs, stoplights, brake lights, and fire equipment are all painted red.
The ancient Egyptians considered themselves a red race and painted their bodies with red dye for emphasis.
In Russia, red means beautiful. The Bolsheviks used a red flag as their symbol when they overthrew th...
A superstition is the belief that an object or an action will have influence on one's life. Folklore abounds with superstitions related to love and marriage; here are some of them.
A bride can ensure good luck in her marriage by wearing something old, something new, something borrowed, and something blue.
It is bad luck for a bride and groom to see each other before the ceremony on their wedding day.
Marry in September's shine,
Your living will be rich and fine;
If in October you do marry,
Love will come but riches tarry;
If you wed in bleak November,
O...
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