§ Задание 13
\[\boxed{\mathbf{13.}}\]
\[55 - 5 = 50\]
\[55 + 5 = 60\]
\[75 + 5 = 80\]
\[75 - 5 = 70\]
\[95 - 5 = 90\]
\[95 + 5 = 100\]
\[\boxed{\mathbf{13.}}\]
\[55 - 5 = 50\]
\[55 + 5 = 60\]
\[75 + 5 = 80\]
\[75 - 5 = 70\]
\[95 - 5 = 90\]
\[95 + 5 = 100\]