1. (5 points) $2016 \times 2014-2013 \times 2015+2012 \times 2015-2013 \times 2016=$
【Analysis】According to the distributive law of multiplication, the common factor can be extracted for simplification.
【Solution】Solve: $2016 \times 2014-2013 \times 2015+2012 \times 2015-2013 \times 2016$
$$
\begin{array}{l}
=2016 \times 2014-2013 \times 2016-2013 \times 2015+2012 \times 2015 \\
=2016 \times(2014-2013)-(2013-2012) \times 2015 \\
=2016 \times 1-1 \times 2015 \\
=2016-2015 \\
=1
\end{array}
$$

Therefore, the answer is: 1.