In regular algebra, addition and multiplication are commutative : $$A + B = B + A$$ $$A \times B = B \times A$$ they are also associative : $$A + (B + C) = (A + B) + C$$ $$A \times (B \times C) = (A\times B) \times C$$ And multiplication is said to be distributive : $$A \times (B + C) = (A \times B) + (A \times C)$$.
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Learn more about the Amish in Lancaster County. 1  Click to share on Facebook (Opens in new window) 2  Click to share on Twitter (Opens in new window) 3  Click to share on Google+ (Opens in new window) 4  Click to share on Pinterest (Opens in new window) 5  Click to email this to a friend (Opens in new window) 6  More.