Answer :

To round the number 446,221 to the nearest ten, follow these steps:

1. Identify the tens and the units place:
- In the number 446,221, the digit '2' is in the tens place, and the digit '1' is in the units place.

2. Look at the digit in the units place:
- The number in the units place is '1'.

3. Apply the rounding rule:
- If the digit in the units place is 5 or higher, you increase the digit in the tens place by 1.
- If the digit in the units place is less than 5, the digit in the tens place remains the same.

4. Perform the rounding:
- Since the digit in the units place is '1' (which is less than 5), we keep the tens digit '2' the same.

5. Write the rounded number:
- Replace the units digit with '0' to complete the rounding. So, 446,221 rounded to the nearest ten becomes 446,220.

Therefore, the rounded number is 446,220.