It depends on the degree of rounding.
To the nearest integer, there is none.
Otherwise 999.
Rounding up implies the number is smaller than 1000. However, a number smaller than 1000 cannot be a 4-digit number. So there cannot be such a number. What was said is wrong. The greatest 4 digit number that rounds up is 999.9
949, which rounds down to 900.
1000
1000
Any number 499 or less rounds to zero. Any number 500 or greater rounds to 1000.
Rounding up implies the number is smaller than 1000. However, a number smaller than 1000 cannot be a 4-digit number. So there cannot be such a number. What was said is wrong. The greatest 4 digit number that rounds up is 999.9
949, which rounds down to 900.
1000
The answer depends on the degree of rounding: to the nearest 10, 100, 1000, 5000?
1000
To the nearest 1000 it is 500.
1000
36527
Any number 499 or less rounds to zero. Any number 500 or greater rounds to 1000.
It depends on what you are rounding to.
950 - 999 rounds to 1000; 750 - 799 rounds 800; and 650 - 699 rounds to 700
Half of 1000 is 500, so numbers in the range 5000 ± 500 round to 5000 to the nearest 1000 EXCEPT that numbers exactly half way round up. ie numbers greater than or equal to 5000 - 500 = 4500 and less than 5000 + 500 = 5500 will round to 5000 to the nearest 1000. So the largest whole number that rounds to 5000 to the nearest 1000 is 5500 - 1 = 5499.