## Prealgebra (7th Edition)

To get the result of $A\times B$, Firstly calculate $|A|\times |B|$, then put a negative sign in front of the result if A and B have different signs, and a positive sign in front of the result if A and B have the same sign.
To get the result of $A\times B$, Firstly calculate $|A|\times |B|$, then put a negative sign in front of the result if A and B have different signs, and a positive sign in front of the result if A and B have the same sign.