Quick explanation:
Brief explanation: To subtract two numbers, we align them vertically by place value and subtract each column starting from the right, borrowing when necessary.
Step-by-step solution:
- Step 1: Subtract the ones column: 4 - 7. Since 4 is less than 7, we borrow from the tens place. The 3 in the tens place becomes 2, and the 4 becomes 14. 14 - 7 = 7.
- Step 2: Subtract the tens column: 2 - 4. Since 2 is less than 4, we borrow from the hundreds place. The 9 in the hundreds place becomes 8, and the 2 becomes 12. 12 - 4 = 8.
- Step 3: Subtract the hundreds column: 8 - 5 = 3.
Answer: 387