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When rounding to a specific place, take a look at the digit immediately to the right of the target, in this case, the tens place. If that digit is 4 or less, zero everything to the right of the target out. If that digit is 5 through 9, increase the target by one and zero everything to the right of it out. If the target is a 9, increasing it will turn it to zero and increase the digit to the left of the target by one.

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8y ago

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As the digit in the tens position is 0, we round down to give 400 as the answer.

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7y ago
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It is 400.

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8y ago
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Q: How do you round 402 to the nearest 100?
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