12. (12 points) Calculate.
$$
\begin{array}{l}
9.5 \times 101 \\
12.5 \times 8.8 \\
38.4 \times 187-15.4 \times 384+3.3 \times 16 \\
5.29 \times 73+52.9 \times 2.7
\end{array}
$$
【Solution】Solution: (1) $9.5 \times 101$
$$
\begin{array}{l}
=9.5 \times(100+1) \\
=9.5 \times 100+9.5 \times 1 \\
=950+9.5 \\
=959.5
\end{array}
$$
(2) $12.5 \times 8.8$
$$
\begin{array}{l}
=12.5 \times 8 \times 1.1 \\
=100 \times 1.1 \\
=110
\end{array}
$$
(3) $38.4 \times 187-15.4 \times 384+3.3 \times 16$
$$
\begin{array}{l}
=38.4 \times 187-154 \times 38.4+3.3 \times 16 \\
=38.4 \times(187-154)+3.3 \times 16 \\
=38.4 \times 33+3.3 \times 16 \\
=38.4 \times 33+33 \times 1.6 \\
=(38.4+1.6) \times 33 \\
=40 \times 33 \\
\quad=1320
\end{array}
$$
(4) $5.29 \times 73+52.9 \times 2.7$
$$
\begin{array}{l}
=52.9 \times 7.3+52.9 \times 2.7 \\
=52.9 \times(7.3+2.7) \\
=52.9 \times 10 \\
=529
\end{array}
$$