\[\boxed{\mathbf{Вариант\ 1.}}\]
\[\boxed{\mathbf{1.}}\]
\[\boxed{\mathbf{2.}}\]
\[5\ м\ 4\ дм > 4\ м\ 5\ дм\]
\[19 \cdot 3 < 3 \cdot 91\]
\[2\ ч = 120\ мин < 200\ мин\]
\[\boxed{\mathbf{3.}}\]
\[700 - x = 200\]
\[x = 700 - 200\]
\[x = 500.\]
\[x - 400 = 500\]
\[x = 500 + 400\]
\[x = 900.\]
\[\boxed{\mathbf{4.}}\]
\[230 - (110 + 70) =\]
\[= 230 - 180 = 50\ (газет) -\]
\[осталось\ у\ продавца.\]
\[Ответ:50\ газет.\]
\[\boxed{\mathbf{5.}}\]
\[34 + 24 = 58\]
\[67 - 45 = 22\]
\[83 - 28 = 55\]
\[93 - 56 = 37\]