To estimate the product of 123 and 9.4 by rounding each number to the nearest ten:
- Round 123 to the nearest ten: 120
- Round 9.4 to the nearest ten: 10
Now, estimate the product:
\[ 120 \times 10 = 1200 \]
Now, let's compute the actual product of 123 and 9.4:
\[ 123 \times 9.4 = 1156.2 \]
So, the estimated product is 1200 and the actual product is 1156.2.