# 2013 AMC8 Problem 18

#### bridge

##### Member
Isabella uses one-foot cubical blocks to build a rectangular fort that is 12 feet long, 10 feet wide, and 5 feet high. The floor and the four walls are all one foot thick. How many blocks does the fort contain?

$$\textbf{(A)}\ 204 \\ \textbf{(B)}\ 280 \\ \textbf{(C)}\ 320 \\ \textbf{(D)}\ 340 \\ \textbf{(E)}\ 600$$