The pupil could add and subtract but hadn't learned to divide.
这名小学生能做加法和减法，但还没学会做除法。
You've got to juggle the two equations, multiply that by 4, multiply that by 3, add and subtract and so on.
你必须联立这两个方程，一个乘以4，另一个乘以3，再加减等等。
Add up all the pleasures, subtract all the pains.
把所有快乐加起来减去所有痛苦。
We cannot do anything about protons, they are buried in the nucleus, but we can add or subtract electrons.
我们不能改变质子，它们埋藏在原子核内，但是我们能够增加或减少电子。
Their first device could add, subtract, multiply and divide.
他们的第一款装置可以进行加、减、乘、除运算。
It's laid out so that you can add or subtract column-like panels to the window, which you can scroll through horizontally.
它的出现让你可以随意在窗口加减类似于栏目框之类的嵌板，这样你就可以水平的拉动。
If you have bigger kids that already know how to add and subtract you could work on division and multiplication problems using the chalk.
如果你的孩子大一些已经学会加减法了，你还可以通过这种方式让他们来学习乘除法。
Now that we introduced vectors, you can add and subtract you might as well learn about multiplication.
既然介绍了矢量，你们也学会了加减，不学乘法总觉得怪怪的。
He discovers knock-knock jokes and learns how to add, subtract, and read.
他能听懂笑话了，学会了怎么去算加减法，还有怎样去阅读。
These are the canonical, mathematical operations add, subtract, multiply, and divide.
它们是规范的数学操作：加、减、乘、除。
You can't just add up all the pleasures and subtract the pains, or add up all the accomplishments and subtract the failures, or add up all the knowledge and subtract the ignorance and deception.
你不能只是把快乐加起来然后减去痛苦，或者仅是把成功相加再减去失败，或者把学问相加再减去蒙昧和欺骗。
The little girl has begun to learn to add and subtract.
这小女孩已在学做加减法了。
Now, you can still add or subtract whatever you want in your life.
现在，你可以增加或减少你觉得有必要增减的东西。
T: Now pick two number between one and ten, including decimal numbers and fractions, then add, subtract, multiply or divide them as you like.
现在从1到10之间挑选两个数，包括小数和分数，然后随意进行加、减、乘、除运算。
It can help reduce costs (for instance, by setting up and configuring an application testbed or by being able to add and subtract computing power when you need it).
有助于降低费用(例如，如果您需要，可以通过建立和配置一个已测试的应用程序，或者通过添加和减去计算功能实现)。
Do not add to what I command you and do not subtract from it, but keep the commands of the LORD your God that I give you.
所吩咐你们的话，你们不可加添，也不可删减，好叫你们遵守我所吩咐的，就是耶和华你们神的命令。
Note that it is NOT ok for the product owner to attempt to add or subtract work that is currently under development. This work has been selected by the product team.
注意，产品负责人不要试图增加或去除当前正在开发中的工作项，那是不可行的，因为这些工作已经被团队选走了。
When conditions for the first soft goal significantly change, the analyst can add new exceptions or subtract existing exceptions from the second goal.
当第一个软目标的条件显著更改时，分析人员可以添加新的异常或从第二个目标中去掉现有的异常。
Once you create them, you can add, subtract, and update the values in the list.
创建列表之后，您可以添加、删除和更新列表中的值。
Add the needs and subtract them from the monthly income. The remaining number is the amount of money the teen can spend on wants.
将必需品的花销加总，再将其从月收入中扣除。剩下的数额就是孩子们能花费在他们想要的东西上的余额。
Around 7% of boys and 6% of girls could add and subtract.
大约有7%的男孩和6%的女孩会加减法。
Specifically, the researchers determined whether a volunteer decided to add or subtract two numbers in a math exercise from patterns of brain activity in the medial and lateral prefrontal cortex.
尤其通过中间和侧面前额皮质大脑活动，研究者能判断志愿者做数学题时是决定将两个数字相加还是相减。
Some industries move quickly to add and subtract workers.
有些行业频繁的招募和辞退工人。
They're not going to subtract from your life, they're going to add to your life.
他并不会让你的生活失去什么，而是要使你的生活增添光彩。
You can easily create a scrip account within the game to add to and subtract from as a result of an agreed-upon exchange by the players.
很容易在游戏中创建一个通货帐号，玩家之间的交换会导致他们的帐号余额发生变化。
And so for the mixture, now all I'm going to do is just add and subtract terms.
那么对混合物，现在我所要做的，就是加减项。
The little boy can add, subtract and multiply , but cannot divide.
那小男孩会做加法、减法和乘法，但不会做除法。
The service interface allowed clients to create instances of a calculator and subsequently add and subtract from the calculator total.
客户端可以在服务接口创建calculator实例，然后从calculator total中进行添加或删减。
The service interface allowed clients to create instances of a calculator and subsequently add and subtract from the calculator total.
客户端可以在服务接口创建calculator实例，然后从calculator total中进行添加或删减。
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