Estimate the value of the following expression without using a calculator.
45678 + 67543
To estimate the value of 45678 + 67543 without a calculator, we can round the two numbers to the nearest ten thousand.
Rounding 45678 to the nearest ten thousand gives us 50000, and rounding 67543 to the nearest ten thousand gives us 70000.
Adding these two rounded numbers gives us an estimate of 120000 for the sum of 45678 and 67543.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Estimate the value of the following expression without using a calculator.

### Response:
To estimate the value of 45678 + 67543 without a calculator, we can round the two numbers to the nearest ten thousand.
Rounding 45678 to the nearest ten thousand gives us 50000, and rounding 67543 to the nearest ten thousand gives us 70000.
Adding these two rounded numbers gives us an estimate of 120000 for the sum of 45678 and 67543.