`25.36+37.25`
`=25.(36+37)`
`=25.73`
`=1825`
$5^{2}$ . `17` `-` $5^{2}$ . `12`
`=` $5^{2}$ . `(17-12)`
`=` `25.5`
`=125`
`125.27.8`
`=(125.8).27`
`=1000.27`
`=27000`
`29.115+29.35+71.82+71.68`
`=(29.115+29.35)+(71.82+71.68)`
`=29.(115+35)+71.(82+8)`
`=29.150+71.90`
`=4360+6290`
`=10750`