Answer
588
Work Step by Step
1. Subtract the ones column by regrouping so 5 becomes 15: 15 - 7 = 8
2. Subtract the tens column by regrouping so (3 becomes 2) 2 becomes 12: 12 - 4 = 8
3. Subtract the hundreds column where 8 becomes 7: 7 - 2 = 5
The answer is 588.