1. (6 points) $1.25 \times 67.875 + 125 \times 6.7875 + 1250 \times 0.053375$.
【Solution】Solution: $1.25 \times 67.875+125 \times 6.7875+1250 \times 0.053375$,
$$
\begin{array}{l}
=125 \times 0.67875+125 \times 6.7875+125 \times 0.53375, \\
=125 \times(0.67875+6.7875+0.53375), \\
=125 \times 8, \\
=1000 .
\end{array}
$$