Rounding off to the Nearest Thousand:

Rounding off to the nearest thousand means to find the nearest multiple of 1000 to the given number.

Steps to Round off:

To round off any number to the nearest thousand, we need to follow the given steps:

Step 1: Look at the digit in the hundreds place.
- If the digit in the hundreds place is less than 5, then leave the digits in the thousands and hundreds place as it is and replace all the digits after the hundreds with zeros.
- If the digit in the hundreds place is greater than or equal to 5, then add 1 to the digit in the thousands place and replace all the digits after the hundreds with zeros.

Step 2: Drop the digits after the thousands place.

Rounding off 613482 to the Nearest Thousand:

Step 1: Look at the digit in the hundreds place, which is 4.
- As 4 is less than 5, we leave the digits in the thousands and hundreds place as it is and replace all the digits after the hundreds with zeros.
- So, rounding off 613482 to the nearest thousand gives us 613000.

Step 2: Drop the digits after the thousands place.
- So, the rounded off value of 613482 to the nearest thousand is 613000.

Therefore, 613482 rounded off to the nearest thousand is 613000.

Rounding off 819809 to the Nearest Thousand:

Step 1: Look at the digit in the hundreds place, which is 9.
- As 9 is greater than or equal to 5, we add 1 to the digit in the thousands place, which is 8.
- So, rounding off 819809 to the nearest thousand gives us 820000.

Step 2: Drop the digits after the thousands place.
- So, the rounded off value of 819809 to the nearest thousand is 820000.

Therefore, 819809 rounded off to the nearest thousand is 820000.