\[\boxed{\mathbf{361.}}\]
\[450 > 380\]
\[450 - 380 = на\ 70.\]
\[680 < 920\]
\[920 - 680 = на\ 240.\]
\[294 < 345\]
\[345 - 294 = на\ 51.\]
\[771 > 717\]
\[771 - 717 = на\ 54.\]
\[344 > 182\]
\[344 - 182 = на\ 162.\]
\[438 < 442\]
\[442 - 438 = на\ 4.\]
\[635 < 640\]
\[640 - 635 = на\ 5.\]
\[898 > 889\]
\[898 - 889 = на\ 9.\]