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Measurement. — Science STD 8 — Question

Tamilnadu BoardEnglish MediumSTD 8ScienceMeasurement.1 Mark
Question
What are the rules for rounding off a number?
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Answer

Rules for rounding off:
  1. Decide which is the last digit to keep.
  2. Leave it the same, if the next digit is less than 5.
  3. Increase it by one, if the next digit is 5 or greater than 5.

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