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A digit less than 6 would be 4 or 5. The sums for 10 would be 9+1, 8+2, 7+3, 6+4 and 5+5. Only numbers from 450-549 can be rounded to 500. All the possibilities would be 455,464,473,482,491,519,528,537 and 548. That is 9 possible numbers.

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10y ago

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The number is 455.

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10y ago
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455

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9y ago
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Q: This 3-digit number rounds up to 500 The hundreds digit is less than 6 The digits in the tens and ones places add to a sum of 10 and they are the same What is the number?
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