她准备学习简单的加法和减法。
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.
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.
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.
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.
如果你在烦恼什么时候去拥有一些东西和什么时候放手，试着考虑做事情的结果。学会负负责任地使用加法并取代减法。
If you're having trouble deciding when to hold on to something and when to let it go, try doing things backward. Learn to add responsibly instead of subtracting.
进化往往做减法而不是加法。
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?
乘法和除法运算符（表3中列出的前四个）具有高于加法和减法的优先级。
The multiplication and division operators (the first four listed in Table 3) have higher precedence than the addition and subtraction operators.
这是因为人在做加法时使用的神经单位和控制眼球向右转动的是同一个，而做减法的则刚好对应控制眼球向左转动的那一部分。
Because adding used the same brain circuits as when eyes moved right. And subtraction matched up with the neurons firing when eyes moved left.
学会负负责任地使用加法并取代减法。
当加法的和是一个两位数或做乘法和减法时，查尔斯便无能为力。
Sums involving two-digit numbers or multiplication or subtraction were beyond him.
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.
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.
Python对算术运算提供完整支持，包括加法、减法、乘法和除法(参见表3)。
Python provides full support for arithmetic operations, including addition, subtraction, multiplication, and division (see Table 3).
那小男孩会做加法、减法和乘法，但不会做除法。
The little boy can add, subtract and multiply , but cannot divide.
使用3d印制机作为生产工具在工业上被称作“加法”制造(与传统的对金属进行裁剪、锥钻、击打的“减法”制造相反)。
Using 3d printers as production tools has become known in industry as "additive" manufacturing (as opposed to the old, "subtractive" business of cutting, drilling and bashing metal).
理解加法和减法是互为逆运算；
正如以上所提到的，将不同的元素通过加法和减法的方式，慢慢地组合到一起是一个需要不断反复的过程。
As mentioned above, it was a very iterative process where all of the element were slowly built up together through additive and subtraction means.
用加法爱人，用减法怨恨，用乘法感恩，用除法解忧。
Love with addition, subtraction resentment, multiplication of gratitude, the division of melancholy.
基于符号数字负二进制表达，提出了任意字长操作数的并行两步加法与一步减法。
Based on sign digit negabinary representation, the two step addition and one step subtraction of arbitrary length operands can be performed.
这次试用加法，不用减法。
学算术要学会加法和减法。
正如您所猜测的，算术运算是基本的数学操作：加法、减法、乘法和除法。
As you might guess, Arithmetic operations are the fundamental math operations: addition, subtraction, multiplication, and division.
那小男孩会做加法、减法和乘法，但不会做除法。
The little boy can add, subtract and multiply, but cannot divide.
您也应该看到加法操作和减法操作的返回值。
You should also see the return values of the add and subtract operations.
做减法比做加法让灵魂成长得更快！
做减法比做加法让灵魂成长得更快！
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