\left. \begin{array} { l l l } { 11 + ( - 7 ) } & { ( b ) ( - 13 ) + ( – InterviewSolution

1.	\left. \begin{array} { l l l } { 11 + ( - 7 ) } & { ( b ) ( - 13 ) + ( + 18 ) } \\ { ( - 10 ) + ( + 19 ) } & { ( d ) ( - 250 ) + ( + 150 ) } \\ { ( - 380 ) + ( - 270 ) } & { ( 1 ) ( - 217 ) + ( - 100 ) } \end{array} \right.
Answer» 9-6 = 3 5-11 = -6-1-7 = -8-5+10 = -5-1-2-3 = -6-2+8-4 = 2

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