$$
\begin{array}{l}
78 \times 4 + 488 = \\
1903 - 475 \times 4 = \\
350 \times (12 + 342 \div 9) = \\
480 \div (125 - 117) = \\
(3600 - 18 \times 200) \div 253 = \\
(243 - 162) \div 27 \times 380 =
\end{array}
$$
【Solution】Solution: (1) $78 \times 4+488$
$$
\begin{array}{l}
=312+488 \\
=800
\end{array}
$$
(2) $1903-475 \times 4$
$$
\begin{array}{l}
=1903-1900 \\
=3
\end{array}
$$
(3) $350 \times(12+342 \div 9)$
$$
\begin{array}{l}
= 350 \times(12+38) \\
= 350 \times 50 \\
= 17500 \\
\text { (4) } 480 \div(125-117) \\
= 480 \div 8 \\
=60
\end{array}
$$
(4) $480 \div(125-117)$
(5) $(3600-18 \times 200) \div 253$
$$
\begin{array}{l}
=(3600-3600) \div 253 \\
=0 \div 253 \\
=0
\end{array}
$$
(6) $(243-162) \div 27 \times 380$
$$
\begin{array}{l}
=81 \div 27 \times 380 \\
=3 \times 380 \\
=1140
\end{array}
$$