YOU SAID:
I think i've done my maths quite wrong
INTO JAPANESE
私は数学をかなり間違ってやったと思う
BACK INTO ENGLISH
I think that I made quite wrong mathematics
INTO JAPANESE
私はかなり間違った数学を作ったと思う
BACK INTO ENGLISH
I think that I made fairly wrong mathematics
INTO JAPANESE
私はかなり間違った数学を作ったと思う
BACK INTO ENGLISH
I think that I made fairly wrong mathematics
Well done, yes, well done!