\[\boxed{\mathbf{10.}}\]
\[95 + 5 = 90 + (5 + 5) =\]
\[= 90 + 10 = 100\]
\[93 + 7 = 90 + (3 + 7) =\]
\[98 + 2 = 90 + (8 + 2) =\]
\[91 + 9 = 90 + (1 + 9) =\]