\[\boxed{\mathbf{1}\mathbf{.162}}\]
\[\textbf{а)}\ 102 \cdot 61\ :183 = 34\]
\[\textbf{б)}\ 93\ 100\ :38\ :25 = 98\]
\[\textbf{в)}\ 378 + 315 - 19 \cdot 35 =\]
\[= 693 - 665 = 28\]
\[\textbf{г)}\ (2436 + 218 - 2314) \cdot 59 =\]
\[= (2654 - 2314) \cdot 59 =\]
\[= 340 \cdot 59 = 20\ 060\]