8. \( \begin{array}{r}33.2 \\ \times \quad 5.1 \\ \hline\end{array} \)

To solve \( 33.2 \times 5.1 \), start by treating the numbers as whole numbers and perform the multiplication: \( 332 \times 51 = 16,932 \). Now, since you were multiplying with decimals (one number has one decimal place and the other has one as well), you need to adjust the result by moving the decimal point two places to the left. Therefore, the final answer is \( 169.32 \). So, \( 33.2 \times 5.1 = 169.32 \).