calculated mistake

An intentional error, usually to avoid some worse outcome, especially when done as a ruse.

Japanese Meaning

計算された間違い：悪い結果を回避するために意図的に行われる誤り、特に策略として仕組まれた失敗

During the negotiation, she admitted to making a calculated mistake to distract the opposition and secure a better deal.

交渉中、彼女は相手の注意をそらしてより有利な条件を勝ち取るために、わざと仕組んだ誤りを犯したことを認めた。

Sense（1）

An intentional error, usually to avoid some worse outcome, especially when done as a ruse.

calculated mistakes

（ plural ）