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calculation; computation; reckoning; counting; adding up; working out; figures
consideration; calculation; estimation; expectation
彼は暗算で計算を素早くする。
He calculates quickly in his head.
失敗の可能性も計算に入れる。
Take the possibility of failure into account.
計算の結果が合っているか確認してください。
Please check if the calculation result is correct.