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Properties of Real Numbers

 

Commutative:    a+b = b+a; ab =ba
Associative:    a+ (b+c) = (a+b)+c; a(bc) = (ab)c
Additive Identity:    a+0 = 0+a = a
Additive Inverse:    -a+a=a+(-a)=0
Multiplicative Identity:    a*1 = 1 *a = a
Multiplicative Inverse:    a * (1/a) = 1 when a is not equal to 0
Distributive:    a(b+c) = ab + ac