Hello!
452.84 rounded to the nearest hundreds place is
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452.84
The number in the hundreds place is 4. When the question asks you to round to the nearest hundreds place, it simply means to round <em>that number </em>either up or down. For example, if the number were 449.84, you would round to 400, as that would be the nearest hundred. Since the digit in the tens place was 5, we rounded <em>up. </em>