I flunked math in second grade.

我二年级时数学不及格。

《牛津词典》

Here's the math I learned in school, as far as I can remember.

这儿是我能记得的在学校学到的数学。

youdao

I am good at math. I also like history and geography but my favorite subject is science.

我擅长数学，我也喜欢历史和地理，但我最喜欢的科目是科学。

youdao

My teachers used to give three cheers when I did well in math.

VOA: special.2009.07.26

I think math is the most obvious one that would be suitable for adapting to this format.

我觉得数学是最明显的,数学能很好地,适应这种方式。

麻省理工公开课 - 媒体、教育、市场课程节选

I don't really have the opportunities to study math and science, which, to some degree, I think is regrettable

我没什么机会继续学习数学和科学。我有时觉得有些很遗憾，

文学是灵魂的方式 - SpeakingMax英语口语达人

Booking.com, or other online travel agencies don't count as central reservation system referrals in the in the math I use to calculate this.

FORBES: What Does It Take To Start A Hotel?

After I did the math, I asked Toyota executives whether their goal was to be the biggest.

FORBES: Toyota Knows The Dangers That Volkswagen Faces In Trying To Rule The Car Market

So that puts the bottom at -- I can do that math quicker than I can the other -- 15, 000 for the bottom end of that.

WHITEHOUSE: Press Briefing