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Well, isn't that a happy little question! When we round 24 to the nearest hundred, we look at the tens place, which is a 2. Since 2 is less than 5, we keep the hundreds place as it is and change the rest to zeros. So, 24 rounded up to the nearest hundred is 100.
It is 300 when rounded to the nearest hundred
916 rounded to the nearest hundred is 900
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It is already rounded to the nearest hundred thousandths. Rounded to the nearest thousands would be 87.381.
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0
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678 is rounded nearest hundred is 700
10900
500