Doing math is a piece of cake什么意思?

Doing math is a piece of cake什么意思? Lin Tao is doing his math exercises Jack is doing better in math.Jack is ()()math改同义句 Lily is not good at math.She always has p____ doing math exercises. [Math is a little difficult]的中文翻译 Math is a little difficult （）him He is a math teacher.He()() why is a math book sad Math is different ______Chinese.It is a little difficult ____ It is a bore .doing He is a math teacher .同义句转换 He _____ ____a math taecher. I think math is a l______ difficult(填空) A----you know,our math teacher is very popular goood,a,math,she,teacher,is(?)连词成句 根据句意补全单词：My math teacher is a w( ). 用good a math she teacher is组句 My dream job is a math teacher 求作文一篇 Yes,he does.He is a math teacher. 怎么问?