Answer :

Sure, let's round the number 11,172 to the nearest ten thousand step by step.

1. Identify the place value to round to: We are rounding to the nearest ten thousand. Look at the ten thousands place, which is the digit "1" in 11,172.

2. Look at the next smallest place value: Check the digit immediately to the right of the ten thousands place, which is the thousand's place digit: another "1".

3. Determine rounding action:
- If the thousand's place digit is 5 or greater, you would round up.
- If it is less than 5, you round down.

Here, the thousand's place digit is "1", which is less than 5.

4. Round down: Since the digit is less than 5, you keep the ten thousand's place the same and change all the digits to the right of it to zero.

5. Result: So, 11,172 rounded to the nearest ten thousand is 10,000.