Originally posted by d000hg
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I was taught about interest and how to calculate units to estimate bills in Maths.
However:
1. Most people who were taught this can't remember they were actually taught anything as they see school subjects as abstract,
2. It isn't all taught to kids in the lower sets,
3. With some products e.g. credit cards the interest is deliberately done in a way that even Maths professors have difficulty calculating it.

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