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8th Grade Algebradef

8th Grade Algebra Definitions

Natural Numbers The set of counting numbers
Whole Numbers The set of counting numbers and zero
Integers The set of Whole numbers and their additive inverses
Rational Numbers The set of all a/b where a=Interger and b= natural
Union To bring together 2 or more sets
Intersection To bring together what is in common between 2 or more sets
Absolute Value The distance of a number from the origin
Reflexive 7=7, a=a
Symmetric if a=b, then b=a
Transitive If a=b and b=c then a=c
Zero Property a*0=0
Distributive Property a (b+c)=ab+ac
Additive Inverse a+-a=0
Additive identity 9+0=9
Communitive property of + and * a+b=b+a, ab=ba
Multiplicative Inverse b*1/b=1
Multiplicative Identity 12*1=12, x*1=x
Associative Property of + or * (a+b)+c=a+(b+c)
Substitution 3+7= 3+(14/2)
Created by: bluehicke35 on 2005-09-14

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