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You round it up to 60.


The rule is:

round 1, 2, 3, 4 down

round 6, 7, 8, 9 up

and round 5 to even


This is in accordance with the IEEE standard 754 (Institute of Electronic and Electrical Engineers).


The commonly taught alternative, of rounding 1, 2, 3, 4 down and 5, 6, 7, 8, 9 up, introduces a bias.

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11y ago
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10y ago

To round 55 to the nearest ten, look at the digit in one's place. If it is 5 or greater, round the digit in hundred's place to the next higher digit. If the digit in the one's place is less than 5, do not change the digit in hundred's place

55 rounded to the nearest ten is 60.

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Q: How do you round 55 to the nearest ten?
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