1. (5 points) Calculate: $8-\left(7.14 \times \frac{1}{3}-2 \frac{2}{9} \div 2.5\right)+0.1=$
【Solution】Solve: $8-\left(7.14 \times \frac{1}{3}-2 \frac{2}{9} \div 2.5\right)+0.1$,
$$
\begin{array}{l}
=8-\left(7.14 \times \frac{1}{3}-\frac{20}{9} \div \frac{5}{2}\right)+\frac{1}{9}, \\
=8-\left(2.38-\frac{20}{9} \times \frac{2}{5}\right)+\frac{1}{9} \\
=8-2.38+\frac{8}{9}+\frac{1}{9} \\
=5.62+\left(\frac{8}{9}+\frac{1}{9}\right), \\
=5.62+1, \\
=6.62 .
\end{array}
$$

The answer is: 6.62 .