How do you represent, describe, and compare additive and multiplicative relationships?

Additive relationships

(a+b) + c=a + (b+c) associative property of addition

a+b=b+a

multiplacive relations

a (b+c) = ab+ac distributive property of multiplication

a times 1=a identity property of 1

a times 0=0

(a*b) * c=a * (b*c)