Quick explanation:
Brief explanation: To add two numbers, we align them vertically by place value and add each column starting from the right, carrying over when a sum exceeds 9.
Step-by-step solution:
- Step 1: Add the ones column: 7 + 2 = 9.
- Step 2: Add the tens column: 4 + 5 = 9.
- Step 3: Add the hundreds column: 3 + 2 = 5.
Answer: 599