Write numbers in standard form to 9,999

Example: 6,000 + 50 + 2 = 6,052

1. Write 1,000 + 300 + 10 + 2 as a number.
2. Write 1,000 + 3 as a number.
3. Write 1,000 + 300 + 60 + 7 as a number.
4. Write 1,000 + 60 + 8 as a number.
5. Write 2,000 + 700 + 2 as a number.
6. Write 2,000 + 600 + 70 + 6 as a number.
7. Write 1,000 + 60 as a number.
8. Write 1,000 + 100 + 70 + 9 as a number.
9. Write 5,000 + 200 + 60 + 5 as a number.
10. Write 4,000 + 800 + 60 + 9 as a number.
11. Write 4,000 + 100 + 50 as a number.
12. Write 3,000 + 100 + 10 + 3 as a number.
13. Write 1,000 + 100 + 60 + 6 as a number.
14. Write 2,000 + 900 + 30 + 9 as a number.
15. Write 2,000 + 400 + 60 + 7 as a number.
16. Write 1,000 + 900 + 10 + 4 as a number.
17. Write 5,000 + 300 + 30 + 9 as a number.
18. Write 6,000 + 300 + 90 + 4 as a number.
19. Write 9,000 + 600 + 90 + 2 as a number.
20. Write 3,000 + 900 + 5 as a number.