The correct answer is: $6719$
Explanation
We subtract 1856 from 8575 by removing thousands, hundreds, tens, and ones step by step.
Steps:
- Subtract the thousands: $$8575 – 1000 = 7575$$
- Subtract the hundreds and tens: $$7575 – 800 = 6775$$ then $$6775 – 50 = 6725$$
- Subtract the ones: $$6725 – 6 = 6719$$
Therefore, $$8575 – 1856 = 6719.$$