jueves, 25 de febrero de 2010

Introduction:

You couid learn the different uses of numbers ,in this blog you will find information of the uses of numbers,how to write theman the convertion of roman numerals


Task
:

you must read the information in this blog and then try to solve as many problem as you can relatedwith the topic.

Procedure:

1-go to internet and open the site.
2- read the information and apply it to solve the problem
3-open a new document in work to write down the solution of the problen

Resources:

you must go to this link and solve the problem http/math,problemsact.com

Evaluation:

evaluation cretirium
presentation 15%
solution 60%
aplication 15%
punctuality 10%

Conclusion:
with this activities students will apply the differnts ways of writing numbers, and will know that the same number can be written in differents way

roman numeral

Roman numerals are written as combinations of the seven letters in the table below. The letters can be written as capital (XVI) or lower-case letters (xvi).
Roman Numerals
I = 1
C = 100
V = 5
D = 500
X = 10
M = 1000
L = 50
You can use a roman numerals chart or conversion table to lookup roman numerals or you can easily learn how to calculate them yourself with a few simple rules.
How to Translate Roman Numerals
If smaller numbers follow larger numbers, the numbers are added. If a smaller number precedes a larger number, the smaller number is subtracted from the larger. For example, if you want to say 1,100 in Roman Numerals, you would say M for 1000 and then put a C after it for 100; in other words 1,100=MC in Roman Numerals.
Some more examples:
VIII = 5+3 = 8
IX = 10-1 = 9
XL = 50-10 = 40
XC = 100-10 = 90
MCMLXXXIV = 1000+(1000-100)+50+30+(5-1) = 1984

Roman Numeral Table









A Brief History of Roman Numerals
What is the history of Roman Numerals? Roman numerals, as the name suggests, originated in ancient Rome. No one is sure when roman numerals were first used, but they far predate the middle ages. Theories abound as to the origins of this counting system, but it is commonly believed to have started with the ancient Etruscans. The symbol for one in the roman numeral system probably represented a single tally mark of the kind people would notch into wood or dirt to keep track of items or events they were counting.
Where are Roman Numerals Used in Modern Times?
Roman Numbers are still used today in a variety of applications. If you are creating an outline for a story or report, you will be expected to use Roman Numerals. They are also commonly used on clocks and watches to number book chapters, films and big events. Monarchs and Popes are usually numbered with this system as are guitar chords and the cranial nerves.
Roman Numerals in Crosswords
Crossword puzzle creators are fond of using Roman Numerals in their puzzles, ranging from requiring translation of complex numbers to expecting puzzlers to know that a Roman Numeral M stands for one thousand. If you want to be an expert crossword puzzler, you probably need to get familiar with the roman numeral conversion process or keep a conversion chart handy. A typical crossword clue is "Half of MCIV" which should be answered "DLII".
Resources
Roman numeral converter
Convert roman numerals up to 4999
Latin roots for spelling
Crossword thesaurus

miércoles, 24 de febrero de 2010



Number
.
A number is a mathematical object used in counting and measuring. A notational symbol which represents a number is called a numeral, but in common usage the word number is used for both the abstract object and the symbol, as well as for the word for the number. In addition to their use in counting and measuring, numerals are often used for labels (telephone numbers), for ordering (serial numbers), and for codes (ISBNs). In mathematics, the definition of number has been extended over the years to include such numbers as 0, negative numbers, rational numbers, irrational numbers, and complex numbers

lunes, 22 de febrero de 2010

Ways of Writting Numbers


Numbers can be written in so many different ways.

Numbers written in the ordinary, normal way is


* STANDARD FORM.

THE NUMBER 5,492,368 IS WRITTEN IN STANDARD FORM

Numbers written in Stretched Out Form is


* EXPANDED FORM.

The number 5,492, 368 can also be written in EXPANDED FORM.

5,000,000 + 400,000 + 90,000 + 2,000 + 300 + 60 + 8

The number 5,492, 368 can also be written in

* WORDS.

five million, four hundred ninety-two thousand,

three hundred sixty-eight


REMEMBER ALL NUMBERS CAN BE WRITTEN 3 DIFFERENT

WAYS.