4-4=?
By angelhuihui
@angelhuihui (264)
China
March 15, 2007 11:33pm CST
One day,the teacher inquired of Peter"How much is four minus four?"Peter was tongue-tied.The teacher got angry and said :"What a fool !You see,if I put four coins in your pocket ,but there is a hole in your pocket,and all of them leak out,now what is left in your pocket?" "The hole."replied Peter.
1 response
@justinhk2107 (712)
• Hong Kong
19 Mar 07
zero is not simple,
0 (zero) is both a number and a numerical digit used to represent that number in numerals. As a number, zero means nothing — an absence of other values. It plays a central role in mathematics as the additive identity of the integers, real numbers, and many other algebraic structures. As a digit, zero is used as a placeholder in place value systems. Historically, it was the last digit to come into use. In the English language, zero may also be called null or nil when a number, o/oh when a numeral, and nought/naught in either context.
A history of Zero
http://www-gap.dcs.st-and.ac.uk/%7Ehistory/HistTopics/Zero.html
