Maybe just use SUM, which ignores text:
=IF(AND(B113="Anne",ISNUMBER(V113)),SUM(R113:S113) ,"")

(Added a missing FALSE part of it to the IF, adapt the "" to suit)
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Max
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xdemechanik
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"EMW103" wrote:
OK, trying to reply again: yes, both the R and S cells are the result of
formulas, and the S cell formula has a text as one of its values. Is that
the problem?