YOU SAID:

Maths is a hard subject especially when tired

INTO JAPANESE

数学は特に疲れたときに難しい課題です

BACK INTO ENGLISH

Mathematics is a difficult task, especially when tired

INTO JAPANESE

特に疲れているとき、数学は難しい仕事です

BACK INTO ENGLISH

Mathematics is a difficult task, especially when you are tired

INTO JAPANESE

特にあなたが疲れているとき、数学は難しい仕事です

BACK INTO ENGLISH

Mathematics is a difficult task, especially when you are tired