Compute: $3^4-5\cdot8$.
So I start by evaluating $3^4$, which means $3\cdot3\cdot3\cdot3$. I can use repeated multiplication or a calculator to find that $3^4=81$. Now I have $81-5\cdot8$, and I still need to do the multiplication before the subtraction. So I multiply $5$ and $8$ to get $40$. Now I have $81-40$, and I can do the subtraction to get the final answer. I subtract $40$ from $81$ and get $41$.

