5. (10 points) In the figure, there are squares of three different sizes with side lengths of 2 cm, 4 cm, and 8 cm, respectively. Therefore, the total area of the figure is $\qquad$ square centimeters.
【Solution】Solution: $8^{2}+4^{2} \times 3+4 \times 4 \div 2 \times 2+2 \times 2 \div 2+(8+2) \times 2 \div 2 \times 2$
$$
\begin{array}{l}
=64+16 \times 3+16+2+10 \times 2 \div 2 \times 2 \\
=64+48+16+2+20 \\
=150 \text { (square centimeters) }
\end{array}
$$

Answer: The area of the entire figure is 150 square centimeters.
Therefore, the answer is: 150.