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Numeric expressions

Numeric operators, in order of increasing precedence. The connectives (previous section) have higher precedence, the string operators (following section) have lower.

`+ -'
Addition and subtraction. Both arguments are coerced to numbers; an error occurs if this cannot be done.
`* / %'
Multiplication, division, remainder. Both arguments are coerced to numbers; an error occurs if this cannot be done.


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