1. What is the number four times greater than a third of the value of the expression:

$184 \cdot 15+15 \cdot 16-15 \cdot 100+15 ?$
First method:

The value of the given expression is:

$184 \cdot 15+15 \cdot 16-15 \cdot 100+15=$

$=15 \cdot(184+16-100+1)=\quad 2$ POINTS

$=15 \cdot 101=\quad 1$ POINT

$=1515 \quad 1$ POINT

One third of the obtained expression is $1515: 3=505$. 1 POINT

The number that is four times greater than the obtained third is $505 \cdot 4=2020$. 1 POINT

. TOTAL 6 POINTS