她准备学习简单的加法和减法。
我是先做加法还是先做乘法?
该服务是一个简单的数学计算服务，提供了加法和减法运算。
This service is a simple math calculation service, providing addition and subtraction operations.
其中大多数可能都是不言自明的，比如加法、减法、乘法和除法。
Most of these are probably self-explanatory, like addition, subtraction, multiplication and division.
灵魂的成长更多的是通过减法而不是加法，通过摆脱这些阻碍我们实现我们的潜能的限制。
Soul grows more by subtraction than by addition, and by getting rid of these limitations that are preventing us from fulfilling our potential.
其中一些研究是在耶鲁大学的凯伦·韦恩实验室完成的，他们在那里观察婴儿对加法和减法的理解。
Some of this work's been done at Yale in Karen Wynn's lab, where they look at babies' understanding of addition and subtraction.
超过1/4的7岁儿童不会正确地做加法。
这名小学生能做加法和减法，但还没学会做除法。
The pupil could add and subtract but hadn't learned to divide.
所以是加法。
加法尔说，他爱上了那美妙的声音、五颜六色的服装、精彩的表演等等。
Ghaffar said he fell in love with the beautiful voices, colorful costumes, excellent shows and so on.
出生于伊朗的加法·帕拉萨尔说，他从小就是李小龙的超级粉丝，对中国充满了兴趣。
Ghaffar Pourazar, born in Iran, said he has been a big fan of Bruce Lee since he was a child and is full of interest in China.
为了帮助更多的人欣赏京剧，加法尔经常在美国、英国和其他国家的学校教授这门传统艺术。
To help more people enjoy Beijing Opera, Ghaffar often teaches the traditional art form in schools in the United States, Britain and other countries.
这个小女孩不太善于做加法。
例如，您期望乘法的优先级比加法高。
You would expect multiplication, for example, to have a higher precedence than addition.
加法操作的解析树的图片。
再按两次回车将显示加法和减法表达式。
Pressing return a couple more times will show an addition and subtraction.
图2：加法操作的解析树。
我喜欢加法，因而我喜欢数学课。
这些举动只会增加法国邻国的反感。
Such events only increased the disapproval of France's princely neighbours.
加法制造相比于传统的方法具有几个重大优势。
The additive approach to manufacturing has several big advantages over the conventional one. It cuts costs by getting rid of production lines.
进化往往做减法而不是加法。
学会负负责任地使用加法并取代减法。
当然，现在可以使用计算机做加法了？
I mean, of course, now you use a computer and it does the sums. Yes?
如果需要消费总额还需再做一项加法。
If you are tracking expenses to determine how much you spend you will need to add the amount you spent to your running total.
因此矢量的加法和减法,要比标量复杂。
So the adding and the subtraction of vectors is way more complicated than just scalars.
什么加法，减法，除法，分数，我们从来不用它们。
We elves never need that. And addition and subtraction and division and fractions?
什么加法，减法，除法，分数，我们从来不用它们。
We elves never need that. And addition and subtraction and division and fractions?
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