1. (7 points) Calculate: $20.17 \times 69 + 201.7 \times 1.3 - 8.2 \times 1.7=$
【Solution】Solve: $20.17 \times 69+201.7 \times 1.3-8.2 \times 1.7$
$$
\begin{array}{l}
=20.17 \times 69+20.17 \times 13-8.2 \times 1.7 \\
=20.17 \times(69+13)-8.2 \times 1.7 \\
=20.17 \times 82-8.2 \times 1.7 \\
=20.17 \times 82-82 \times 0.17 \\
=82 \times(20.17-0.17) \\
=82 \times 20 \\
=1640
\end{array}
$$

Therefore, the answer is: 1640.