507 200 is the same as
1. (5 x 10 000) + (7 x 100) + (2 x 10)
2. (5 x 10 000) + (7 x 1 000) + (2 x 100)
3. (5 x 100 000) + (7 x 10 000) + (2 x 100)
4. (5 x 100 000) + (7 x 1 000) + (2 x 100)