\(\text{-567-(-113)+(-69)-(113-567)}\)
=\(-567+113-69-113+567\)
=\(\left(-567+567\right)\left(113-113\right)-69\)
=\(-69\)
\(\text{15.(17-111)-17.(22+15)}\)
\(=225-1665-3774-225\)
\(=\)\(\left(225-225\right)-\left(1665+3774\right)\)
\(=0-5439=-5439\)
\(2011+\left\{743-\left[2011-\left(275\right)\right]\right\}\)
\(=2011+\left\{743-\left[2011-275\right]\right\}\)
\(=2011+\left\{743-1754\right\}\)
\(=2011-1011\)
\(=1000\)
15.(17-111)-17.(22+15)15.(17-111)-17.(22+15)
=225−1665−3774−225=225−1665−3774−225
==(225−225)−(1665+3774)(225−225)−(1665+3774)
=0−5439=−5439
