Assuming you mean the greatest whole number, to the nearest:
749 is the greatest number that rounds down to 700.
4,999 is the greatest whole number.
The greatest number that rounds to 6000 when rounded to the nearest thousand is 6000 itself. Any number from 5500 to 6499 will round to 6000, but the highest number in that range is 6499. Therefore, 6499 is the greatest number that rounds to 6000.
22999
100.49999999999999999999999999...
277299999
5444
The answer is 99. When 99 is the greatest two-digit number that rounds to 100 when rounded to the nearest Ten.
350
99
It is 2773049 to the nearest 100.
The greatest whole number would be 499.