949.9999...
749 rounded to the nearest hundred is 700
850 and 949 rounded the nearest hundred is 900
0
800
Well, honey, if you're rounding off 800, the greatest number it can be rounded off to is 1000. But let's be real, rounding off 800 to 1000 is like putting a fancy hat on a potato - it's still just 800 in disguise.
949.9999...
The greatest whole number would be 499.
If you're talking about whole numbers, then it's 6,049 .If you're talking about any number, including decimals and fractions, then there's no "greatest possible" one.
749 rounded to the nearest hundred is 700
850 and 949 rounded the nearest hundred is 900
600
500
3200
8200
0
The smallest number that is 600 when rounded to the nearest hundred is 550. The largest number that is 600 when rounded to the nearest hundred is 649.