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Tuesday, January 21, 2014

Scribe

Sign Rule (Part 1)
When integers have the same value (+ or -) the product is positive.
When the integers have different values (+,-) the product is negative
(+2)×(-3)=-6            (-2)×(+3)=-6
(+2)×(+3)=6             (-2)×(-3)=6


Sign Rule (Part 2)
When multiplying integers count the negative signs
Odd number= negative product
Even number= positive product
(+2)×(+3)×(-1)=
\            /
     (+6) × (-1)=(-6)

(+2)×(+3)×(-1)×(-1)=
 \           /
     (+6) × (-1)

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