Exam-style question
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Which value is most appropriately represented as a natural number when counting?.
- A.12 books
- B.2.5 metres
- C.7.25 kilograms
- D.18.6 degrees
Model answer
What a good answer should say
- 12 books
Explanation
Why this works
Natural numbers are used for counting separate items. The other options describe measurements that may include fractional values, so real numbers are more appropriate.
Common mistake
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