Find the difference between:

1. Subtract 6854 from 9857

2. Subtract 483 from the largest 3 digit number

3. Find the difference between 100 and the first prime number after 50.

4. Find the difference between the smallest 5 digit number and the largest 3 digit number.

5. Find the difference between the predecessor of 10000 and the successor of 999

1. 3003

2. 516

3. 47

4. 9001

5. 8999