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POSITIVE AND NEGATIVE NUMBERS

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Positive and Negative numbers
Generally in mathematics especially in algebra we use positive and negative numbers.There are some rules to use this number in addition, subtraction and multiplication. The sign of the positive number is+ and the negative Number is --.
The example for Positive Number is 12, 34,+45, 67.The examples of Negative number is -23,-5,-78,-12.
You must note one thing if it is apositive number there is no need to use that positive that is + sign before that number. But if it is a negative number it is must. [link]C:\Temp\selvi.html

1.Addition/subtraction
2.Subtraction
3.Multiplication/Division
--|} 1. [ADDITION/SUBTRACTION]
POS+POS=POS
NEG+NEG=NEG
NEG+POS=NEG/POS(depending upon the NEG and POS value)
EXAMPLE
-12+4=-8
10-6=4
2.MULTIPLICATION/DIVISION
POS*POS=POS
POS*NEG=NEG
NEG*POS=NEG
NEG*NEG=POS
linkhttp://tamilselvi.blog.com/ --Tamil43000:16, 21 September 2007 (UTC)