Algebra im in 8th grade its properties

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I need help with them im so confused!!!!

Aug 29th, 2015

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In an addition problem, the position of the parenthesis doesn't matter. a+(b+c)=(a+b) + c

DISTRIBUTIVE =a(b+c)= ab=ac

 COMMUTATIVE ADDITION  PROPERTY=In an addition problem, you can rearrange the #s because the order doesn't matter

 Commutative multiplication=in a multiplication problem, the order doesn't matter. 


 ASSOCIATIVE  MULTIPLICATION=In a multiplication property, the position of the parenthesis doesn't matter

 IDENTITY property =The sum of zero and a # is that number. 

 Identity property of multiplication of 1 =the product of any # and 1 is that number


 Inverse property of addition=Every # has an additive inverse such that the # plus its inverse = 0


 Inverse property (multiplication)Every # has a multiplicative inverse- the number time its inverse = 1

 Multiplication of -1 property=The product of any # and -1 is its additive inverse
2 x -1 = -2

Zero propert=

The product of any number and zero = 0
4 X 0=0

Symmetrical property

If a=b, then b=a; the equal sign works both ways

 Reflexive property=Every number equals itself


 Transitive  property=a=b and b=c, then a=c; Skip the middle 

Please let me know if you need any clarification. I'm always happy to answer your questions.
Aug 29th, 2015

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