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To estimate \( 32.73 \times 9.18 \) by rounding each number to the place of its leftmost nonzero digit:

1. **First round 32.73 to the nearest ten**:
   - The leftmost nonzero digit of 32.73 is 3, which is in the tens place. Since the digit in the ones place is 2 (less than 5), we round down.
   - Therefore, \( 32.73 \) rounds to **30**.

2. **Now round 9.18 to the nearest one**:
   - The leftmost nonzero digit of 9.18 is 9, which is in the ones place. Since the digit in the tenths place is 1 (less than 5), we round down.
   - Therefore, \( 9.18 \) rounds to **9**.

3. **Multiply the rounded numbers**:
   \[
   30 \times 9 = 270
   \]

So the estimated product is **270**.

Would you like more details on the rounding process or have any questions? Here are some related questions you might explore:

1. What would be the result if we rounded both numbers to the nearest whole number instead?
2. How much does the exact product \( 32.73 \times 9.18 \) differ from the estimate?
3. What happens if we round \( 32.73 \) to the nearest hundred instead of ten?
4. How would rounding affect multiplication if one number were much smaller?
5. Can rounding make an estimate less accurate in certain situations?

**Tip:** Rounding numbers to their leftmost nonzero digit is often useful for making quick, rough estimates in everyday calculations.

Let's estimate 32.73 × 9.18 by rounding each number to the place of its leftmost nonzero digit.

Learn how to estimate the product of 32.73 and 9.18 by rounding each number to its leftmost nonzero digit. This problem teaches key concepts in rounding and estimation, suitable for students in Grades 4-6.

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