The hundreds, on either side of 449 are 400 and 500.
449 is
49 away from 400, and
51 away from 500.
So the nearest hundred is 400.
449 rounds to -(nearest 100)
400
500
500
500
400
500
400
400
350 to 449
350 to 449 -- 100 numbers
It is 450.
It is: 450
Looking at the final two digits, as they are 49, they figures round down because of the 4, so the result is 400.
350 and up to
500
Technically, if you were trying to round to the nearest hundreds place, then no. You would have to go back to 400.
350 to 449 -- 100 numbers
round 90 to the nearest ten
350 to 449
372 rounded to the nearest hundred is 400