\[\boxed{\mathbf{38.}}\]
\[6 + 6 + 6 + 6 + 6 = 30\]
\[6 \cdot 5 = 30\]
\[4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 =\]
\[= 32\]
\[4 \cdot 8 = 32\]
\[7 + 7 + 7 + 7 = 28\]
\[7 \cdot 4 = 28\]
\[8 + 9 + 7 + 9 = 17 + 16 = 33\]
\[3 + 3 + 3 + 6 + 6 + 6 = 27\]
\[3 \cdot 3 + 6 \cdot 3 = 27\]
\[9 + 9 + 9 + 9 + 9 + 9 + 9 = 63\]
\[9 \cdot 7 = 63\]
\[6 + 9 + 6 + 9 + 9 = 39\]
\[6 \cdot 2 + 9 \cdot 3 = 39\]