Question

What are the rules to round off digits.

CLASS 11.
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Answer 1

Answer:

Here's the general rule for rounding: If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up. Example: 38 rounded to the nearest ten is 40. If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down.

Explanation:

Answer 2

Certain rules are applied to round off the measurements.



If the number lying to the right of digit to be rounded off is less than 5, then the digit to be rounded is increased by 1

Example- if x=6.23 then it's rounded off to x=6.2

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If the digit to be rounded is simply 5 then it's preceding digit is left unchanged if it's even

Example- if x=6.25 then it becomes x=6.2

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If the digit to be rounded is 5 then 1 is added if it's odd

Example - if x=6.35 then it becomes x=6.4