2. (10 points) Calculate:
$$
10 \times 9 \times 8 + 7 \times 6 \times 5 + 6 \times 5 \times 4 + 3 \times 2 \times 1 - 9 \times 8 \times 7 - 8 \times 7 \times 6 - 5 \times 4 \times 3 - 4 \times 3 \times 2
$$
【Analysis】First, group each term, then solve according to the distributive law of multiplication.
【Solution】Solution: $10 \times 9 \times 8+7 \times 6 \times 5+6 \times 5 \times 4+3 \times 2 \times 1-9 \times 8 \times 7-8 \times 7 \times 6-5 \times 4 \times 3-4 \times 3$
$$
\begin{array}{l}
\times 2 \\
=(10 \times 9 \times 8-9 \times 8 \times 7)-(8 \times 7 \times 6-7 \times 6 \times 5)+(6 \times 5 \times 4-5 \times 4 \times 3)-(4 \times 3 \times 2 \\
-3 \times 2 \times 1) \\
=9 \times 8 \times(10-7)-7 \times 6 \times(8-5)+5 \times 4 \times(6-3)-3 \times 2 \times(4-1) \\
=9 \times 8 \times 3-7 \times 6 \times 3+5 \times 4 \times 3-3 \times 2 \times 3 \\
=(9 \times 8-7 \times 6+5 \times 4-3 \times 2) \times 3 \\
=(72-42+20-6) \times 3 \\
=44 \times 3 \\
=132
\end{array}
$$

Therefore, the answer is: 132.