Find $3 \cdot 5 \cdot 7 + 15 \div 3.$
I can use the order of operations (PEMDAS) to decide which ones to do first. According to PEMDAS, I should do the multiplication and division before the addition. So, I will start with $3 \cdot 5 \cdot 7$, which is $15 \cdot 7$, which is $105$. Then, I will do $15 \div 3$, which is $5$. Now, I only have to add $105$ and $5$ to get the final answer. $105 + 5 = 110$.

