1. Calculate: $2018 \cdot 146-[2018-18 \cdot(4+5 \cdot 20)] \cdot 18$.
1.2018 \cdot 146-[2018-18 \cdot(4+50 \cdot 2)] \cdot 18= & 2018 \cdot 146-[2018-18 \cdot(4+100)] \cdot 18 & & 1 \text { BOD } \\
& =2018 \cdot 146-[2018-18 \cdot 104] \cdot 18 & & 1 \text { BOD } \\
& =2018 \cdot 146-[2018-1872] \cdot 18 & & 1 \text { BOD } \\
& =2018 \cdot 146-146 \cdot 18 & & 1 \text { BOD } \\
& =146 \cdot(2018-18) & & 1 \text { BOD } \\
& =146 \cdot 2000 & & 1 \text { BOD }
\end{aligned}
$$

TOTAL 6 POINTS


#### Abstract

Note: If the student correctly solves the problem without applying distributivity, they achieve all 6 POINTS.