1. (6 points) Calculate: $4.165 \times 4.8 + 4.165 \times 6.7 - 4.165 \div \frac{2}{3}=$
1. (6 points) Calculate: $4.165 \times 4.8 + 4.165 \times 6.7 - 4.165 \div \frac{2}{3} = 41.65$.
【Solution】Solution: $4.165 \times 4.8 + 4.165 \times 6.7 - 4.165 \div \frac{2}{3}$,
$$
\begin{array}{l}
=4.165 \times 4.8 + 4.165 \times 6.7 - 4.165 \times \frac{3}{2}, \\
=(4.8 + 6.7 - 1.5) \times 4.165, \\
=10 \times 4.165, \\
=41.65
\end{array}
$$

Therefore, the answer is: 41.65.