Mine was 1,200 yen, wasn't it?

Mine was 1,200 yen, wasn't it?
私の分は1200円ですよね？

That was a big one, wasn't it?
大きかったねえ！

Gee, that was sort of ironic, wasn't it?
あら、それは一種の皮肉だろ？

"Damn! That was such a nerve-wracking exam, wasn't it?" "Yeah, I almost went nuts!"
「くそー！あのテストにはイライラさせられたな！」「本当だよな。気が狂いそうだったぜ」

"They talked about politics at dinner." "It was an unpleasant situation, wasn't it?"
「彼らは夕食の席で政治について話しました」「それは気まずい状況でしたね」