I have some math books. They are my best friends.

我有些数学书，它们是我最好的朋友。

youdao

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

她总是给我买额外的数学书在家里做。

youdao

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

你为什么认为数学书有那样的数学题呢？

youdao

Co-founder Neeru Khosla says the nonprofit group had been developing digital science and math books for about two years.

VOA: special.2009.08.27

They sought the help of full-time math teachers, consulted books and online sources and, whenever possible, taught one another.

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But I want you guys to read and hit the books and do your math, because that's really what's going to determine how you do in the future.

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For example, accounting classes will stress judgment calls about what revenue can be kept off the books, along with the math behind those revenue calculations.

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