`16.003xx27.998-209.010=?`

Options

A. 150
B. 200
C. 75
D. 240

Explanation

To solve the equation \( 16.003 \times 27.998 - 209.010 \), we will approximate the numbers for easier calculation.

### Step-by-Step Solution:

1. **Approximate the Numbers**:
- For \( 16.003 \), since the decimal part (0.003) is less than 0.5, we round it down to \( 16 \).
- For \( 27.998 \), since the decimal part (0.998) is greater than 0.5, we round it up to \( 28 \).
- For \( 209.010 \), since the decimal part (0.010) is less than 0.5, we round it down to \( 209 \).

Thus, we have:
\[ 16.003 \approx 16, \quad 27.998 \approx 28, \quad 209.010 \approx 209 \]

2. **Multiply the Approximated Values**:
\[ 16 \times 28 \]
To calculate this, we can break it down:
\[ 16 \times 28 = 16 \times (20 + 8) = (16 \times 20) + (16 \times 8) = 320 + 128 = 448 \]

3. **Subtract the Approximated Value**:
Now we subtract \( 209 \) from \( 448 \):
\[ 448 - 209 \]
To perform this subtraction:
\[ 448 - 209 = 239 \]

4. **Round the Result**:
The result \( 239 \) can be approximated to the nearest ten, which is \( 240 \).

### Final Answer:
Thus, the final answer is approximately:
\[ \boxed{240} \]