<Dl> <Dd> 10 − 3 + 2 . </Dd> </Dl> <Dd> 10 − 3 + 2 . </Dd> <P> The correct value is 9 (and not 5, as if the addition would be carried out first and the result used with the subtraction afterwards). </P> <P> If exponentiation is indicated by stacked symbols, the usual rule is to work from the top down, because exponention is right - associative in mathematics thus: </P>

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