\[\boxed{\text{46.}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[= 3\ 010 - 802 + 9\ 042 =\]
\[= 2\ 208 + 9\ 042 = 11\ 250.\]
\[= (40\ 179 - 3\ 079) \cdot 4 =\]
\[= 37\ 100 \cdot 4 = 148\ 400.\]
\[= (90 - 14 \cdot 2)\ :2 =\]
\[= (90 - 28)\ :2 = 62\ :2 = 31.\]
\[= 15 \cdot (18 - 12) = 15 \cdot 6 = 90.\ \]