1. (8 points) The calculation result of the expression $201 \times 5+1220-2 \times 3 \times 5 \times 7$ is $\qquad$
【Solution】Solution: $201 \times 5+1220-2 \times 3 \times 5 \times 7$
$$
\begin{array}{l}
=(200+1) \times 5+1220-(2 \times 5) \times(7 \times 3) \\
=200 \times 5+5+1220-10 \times 21 \\
=1005+1220-210 \\
=2015 ;
\end{array}
$$

Therefore, the answer is: 2015 .