\(125+173+175+27=\left(125+175\right)+\left(173+27\right)=300+200=500\)
\(125\times75+125\times25=125\times\left(75+25\right)=125\times100=12500\)
125 + 173 + 175 + 27 = ( 125 + 175 ) + ( 173 + 27 ) = 300 + 200 = 500
125 × 75 + 125 × 25 = 125 × ( 75 + 25 ) = 125 × 100 = 12500