#### Answer

4602 - 2063 = 2539

#### Work Step by Step

4602 - 2603 = 2539
Subtract the ones column. since 2 is less than 3, borrow from the tens column. The tens column contains zero, so you must first borrow from the hundreds column. Compute 12 -3 = 9. Write 9 in the ones column.
Subtract the tens column, which now has a value of 9 because of borrowing. Compute 9 - 6 = 3. Write 3 in the tens column.
Subtract the hundreds column, which now contains 5 because of borrowing. Compute 5 - 0 = 5. Write 5 in the hundreds column.
Subtract the thousands column. Compute 4 - 2 = 2. Write 2 in the thousands column.