\[\boxed{\mathbf{423}\mathbf{\ (387)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ 412 \cdot 42 - 7304 = 10\ 000\]
\[2)\ 85 \cdot (870 - 567) = 25\ 755\]
\[3)\ (294 + 16) \cdot (348 - 279) =\]
\[= 21\ 390\]
\[4)\ 294 + 16 \cdot 348 - 279 = 5583\]
\[5)\ (294 + 16) \cdot 348 - 279 =\]
\[= 107\ 601\]
\[6)\ 294 + 16 \cdot (348 - 279) =\]
\[= 1398\]