To estimate the product of \(29 \times 688\), we can round the numbers to make the multiplication simpler.
- Estimate \(29\): We can round \(29\) to \(30\) (which is an overestimate).
- Estimate \(688\): We can round \(688\) to \(700\) (which is also an overestimate).
Now, we multiply the rounded numbers:
\[ 30 \times 700 = 21000 \]
So, the estimated product is \(21000\).
To determine if this estimate is an overestimate or an underestimate, let's consider the actual multiplication:
\[ 29 \times 688 = 19952 \]
Since \(21000\) (our estimate) is greater than \(19952\) (the actual product), the estimate \(21000\) is an overestimate.