Related for Bekhorot 121:10
והתנן אמרו משום ר"מ
Thus it cannot effect a consecration [for another animal] to be offered up but, as far as [the animal] itself is concerned, [the eleventh called by mistake the tenth] can be offered up [according to R'Judah]!
Tosefta Terumot
[If an owner] says to his agent, "Go and separate terumah!", he separates an average amount, one fiftieth. [If the owner says] "Go and separate terumah, one fiftieth!" and [the agent inadvertently] reduces it by ten [parts] or increases it by ten [parts], his terumah is [valid] terumah, but if he intended to add [even] one [part more], his terumah is not [valid] terumah. (Ter. 4:4.)
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