\[\boxed{\text{178\ (178).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[1)\ 5^{3} + 8^{2} = 125 + 64 = 189.\]
\[2)\ (9 - 8)^{3} = 1^{3} = 1.\]
\[3)\ {2,5}^{2} + {0,25}^{2} =\]
\[= 6,25 + 0,0625 = 6,3125.\]
\[4)\ (7,8 + 8,2)^{2} = 16^{2} = 256.\ \]