她總是給我買額外的數學書在家里做。

　　She'd always buy me extra math books to do at home.

　　我的數學書在課桌的抽屜里。

　　My math book is in the drawer of the desk.

　　你為什么認為數學書有那樣的數學題呢？

　　Why do you think that math books have so math problems?

　　它為您提供了一套數學書，函數和變量。

　　It provides you with set of Math Book, functions and variables.

　　我想要一本數學書。我在哪里能找到它？

　　I want a Maths book. Where can I find it?