\[\boxed{\mathbf{33.}}\]
\[27 + 3 = 30\]
\[45 + 5 = 50\]
\[2 + 38 = 40\]
\[95 + 5 = 100\]
\[97 + 3 = 100\]
\[6 + 94 = 100\]
\[40 - 3 = 37\]
\[60 - 2 = 58\]
\[80 - 6 = 74\]
\[100 - 2 = 98\]
\[100 - 4 = 96\]
\[100 - 9 = 91\]