The least number of 3 digits subtracted from greatest number of 6 digits yields.

Options

A. 999899
B. 99999
C. 10000
D. 10999

Answer

To solve the problem, we need to find the difference between the greatest number of six digits and the least number of three digits.

### Step-by-Step Solution:

1. **Identify the greatest number of six digits:**
- The greatest number that can be formed with six digits is 999999.

2. **Identify the least number of three digits:**
- The least number that can be formed with three digits is 100.

3. **Subtract the least number of three digits from the greatest number of six digits:**
- We perform the subtraction:
\[ 999999 - 100 \]

4. **Perform the calculation:**
- Subtracting 100 from 999999 gives:
\[ 999999 - 100 = 999899 \]

5. **Final Result:**
- Therefore, the result of the subtraction is 999899.

### Summary:
The least number of three digits subtracted from the greatest number of six digits yields 999899.