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