So I often do math tests after class.
所以我经常在课后做数学测试。
If there was a teacher they were much more likely to read books and do math or number work; without a teacher they would only play games.
如果有老师在那里，他们更可能读书、做数学题或数字功课；没有老师，他们只会玩游戏。
In other words, you need it in a way that the code can do math with it.
换言之，就是需要它以代码能处理的方式存在。
Despite ranking 25th and 17th on the PISA test, I think the U.S. can actually do math and science, and do it damn well.
尽管在PISA测试中排名25和17，我想美国可以在数学和科学方面做的很好。
The worst thing a parent can do is to pressure preschoolers to perform — for example, by pushing them to read or do math exercises before they're ready.
父母做的最不明智的事情就是强迫学龄前孩子去做一些事情—比如，当孩子还没有发育到一定程度时就逼迫他们去阅读或者做数学题。
My favorite subject is math, so I can do math well.
我最喜欢的科目是数学所以我数学好。
Schools have to be increasingly conscious of expecting that girls will play sports, take on leadership opportunities, chair science groups, do math.
学校应该越来越意识到女孩要参加体育运动，要 有机会成为领导者，做科学兴趣小组的组长，学数学。
Do math problems in your head instead of on a calculator.
心算而不是用计算器计算。
Do math problems in your head instead of on a calculator.
心算而不是用计算器计算。
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