Using the rule 'age in months minus 6', how many teeth should a 12-month-old have?

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Multiple Choice

Using the rule 'age in months minus 6', how many teeth should a 12-month-old have?

Explanation:
Think about eruption of baby teeth as a quick rough estimate: subtract six from the age in months to estimate how many primary teeth have erupted. At 12 months, 12 minus 6 equals 6, so about six teeth should be present. This aligns with the typical timeline where the first teeth appear around 6–10 months and by one year many children have around six teeth erupted. It’s a rough guide, not an exact count, since individual children vary. So six is the expected number at 12 months.

Think about eruption of baby teeth as a quick rough estimate: subtract six from the age in months to estimate how many primary teeth have erupted. At 12 months, 12 minus 6 equals 6, so about six teeth should be present. This aligns with the typical timeline where the first teeth appear around 6–10 months and by one year many children have around six teeth erupted. It’s a rough guide, not an exact count, since individual children vary. So six is the expected number at 12 months.

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