489967234+500101234+657999812,correct upto the nearest ten thousand

To correctly add these numbers up to the nearest ten thousand, follow these steps:

Step 1: Add the numbers together:
489,967,234 + 500,101,234 + 657,999,812 = 1,647,068,280

Step 2: Round the sum to the nearest ten thousand:
To round a number to the nearest ten thousand, we will look at the thousands place of the number. If the digit in the thousands place is 5 or greater, we will round up. If it is less than 5, we will round down.

In this case, the sum is 1,647,068,280. The digit in the thousands place is 0. Since 0 is less than 5, we will round down.

To round down, we replace the digit in the thousands place and all following digits with zeros.

Therefore, rounded to the nearest ten thousand, the sum is:
1,647,000,000