Translation of "Hastily" in Japanese

I calculated hastily.

私は急いで計算をした。

Do not answer hastily.

軽率に答えるな。

He hastily packed his bags.

彼は急いで荷物をまとめた。

Hastily acquired knowledge was not enough to solve the problem.

にわか仕込みの知識ではその問題は解けなかった。

This letter was full of mistakes because it had been written too hastily.

あまりに急いで書かれたので、その手紙にはたくさん間違いがあった。

- If the tip was a dime in one glass, the waitress, in her haste to get the table ready for the next customer, would pick up the glass, the water would spill out, and that would be the end of it.
- When the tip was a lone dime thrown into a glass, the waitress would raise the glass while hastily preparing the table for the next customer. She would then spill the water and that would be it.

チップがグラス一つの中の１０セントであれば、ウェイトレスは次の客に備えて急いでテーブルを片付けようとしてグラスを持ち上げ、水がこぼれだし、事はおしまいということになろう。