Exam-style question
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For each value below, state the result of rounding it to the nearest whole number and the result of truncating it to a whole number: 6.4 and 6.8. Include suitable Python 3 expressions.
Model answer
What a good answer should say
- For 6.4: round(6.4) gives 6 and int(6.4) gives 6.
- For 6.8: round(6.8) gives 7 and int(6.8) gives 6.
Explanation
Why this works
Rounding selects the nearest whole number, so 6.4 rounds to 6 and 6.8 rounds to 7. Truncation removes the fractional part without increasing the value, so both 6.4 and 6.8 become 6 when converted to an integer using int().
Common mistake
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