1. Calculate $2015-5 \cdot(25 \cdot 13+13+3 \cdot 25-10)$.
First method:
    \(2015-5 \cdot(25 \cdot 13+13+3 \cdot 25-10)=2015-5 \cdot(325+13+75-10)=\quad 1\) POINT
    \(=2015-5 \cdot(338+75-10)=\quad 1\) POINT
    \(=2015-5 \cdot(413-10)=\quad 1\) POINT
    \(=2015-5 \cdot 403=\quad 1\) POINT
    \(=2015-2015=\quad 1\) POINT
    \(=0 \quad 1\) POINT
TOTAL 6 POINTS