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What's Your Dental Score?

To find the “dental score” of a pupil, one school system subtracts points from 100. They subtract 5 for unclean teeth; 10 for a decayed tooth; 4 for a small cavity; 1/2 for a filled tooth; and 1 for a tooth that has been pulled. Find the dental score of a girl who keeps her teeth clean, but who has 2 filled teeth and one tooth with a small cavity.


Source: W. Hart & C. Gregory’s Socialized General Mathematics, (1937).