1. (10 points) Calculate: $19 \times 0.125+281 \times \frac{1}{8}-12.5=$ $\qquad$
【Analysis】Simplify the calculation according to the distributive law of multiplication.
【Solution】According to the problem, we have:
$$
\begin{array}{l}
19 \times 0.125+281 \times \frac{1}{8}-12.5, \\
=19 \times 0.125+281 \times 0.125-100 \times 0.125, \\
=(19+281-100) \times 0.125, \\
=200 \times 0.125, \\
=25 .
\end{array}
$$

Therefore, the answer is: 25 .