To estimate the product of \(8.21\) and \(3.6\), we can round each number to a more manageable figure.
- Round \(8.21\) to \(8\) (nearest whole number).
- Round \(3.6\) to \(4\) (nearest whole number).
Now we can estimate the product:
\[ 8 \times 4 = 32 \]
Next, let's solve the original problem to find the exact value of \(8.21 \times 3.6\).
\[ 8.21 \times 3.6 = 29.556 \]
So, the estimated product is \(32\), and the exact product is \(29.556\).