将会有加减乘除的简单测试。
There will be simple tests in addition, subtraction, multiplication, and division.
不久前，研究人员发现4天大的婴儿能够理解加减法。
Not long ago, researches learned that four-day olds could understand addition and subtraction.
最近一项研究表明，蜜蜂可以进行加减法的运算。
Recently, a study showed that bees could perform arithmetic operations like addition and subtraction.
蜜蜂会做加减法——它们用颜色来代替加号和减号。
Bees are capable of addition and subtraction — using colors in the place of plus and minus symbols.
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。
You've got to juggle the two equations, multiply that by 4, multiply that by 3, add and subtract and so on.
该服务接受两个数字进行加减运算。
The service accepts two Numbers for addition or subtraction.
你也应该学会加减法的心算。
大约有7%的男孩和6%的女孩会加减法。
那么对混合物，现在我所要做的，就是加减项。
And so for the mixture, now all I'm going to do is just add and subtract terms.
看，这就是加减号的敏感性。
这小女孩已在学做加减法了。
是21。35，加减0。
这些小三角对应于控制代码合并的加减符号。
These correspond to the plus and minus signs that control code folding.
这或许是个加减法，一切都看你如何看待它。
This may be a plus or a minus, depending on how you look at it.
定距尺度的值可以加减，但乘除则没有意义。
The values on an interval scale can be added and subtracted, but can not be meaningfully multiplied or divided.
加减一公斤，是因为天平的精度，不能小于1公斤。
The plus or minus 1 comes in because our scale is no more accurate than one gram.
与此同时，在瑜伽班上，学员们坚持参加减压课程。
At the same time, in Yoga classes, students kept attending for stress management and relief from panic attacks.
这都是心理和情感上的斗争，而不是算术上的加减乘除。
These are psychological and emotional battles, not battles about math.
敏捷认为小团队的人数规模应该是在魔法数字7上加减2。
Agile talks about small team sizes with the magic Numbers of 7 plus minus 2. Agile also recommends whole teams.
他能听懂笑话了，学会了怎么去算加减法，还有怎样去阅读。
He discovers knock-knock jokes and learns how to add, subtract, and read.
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。
Now that we introduced vectors, you can add and subtract you might as well learn about multiplication.
相反，使用 +或 *等符号定义可以执行普通数字加减法的函数。
Instead symbols like + or * are used to define functions that can do things like normal numerical addition and subtraction.
因为金融危机与许多人面对的强制借贷有关，这会增加减税的有效性。
Because of the financial crisis relatively more people face borrowing constraints, which would increase the effectiveness of a tax cut.
对于加减法运算所需循环的平均数是2，而旧型号机却需12—15。
For adds and subtracts, the average number of cycles required is two, versus about 12 to 15 for the previous type.
有些减肥计划需要购买药片、减肥餐，或去诊所，参加减肥支持小组。
Some weight-loss programs require you to buy supplements or meals, or to visit weight-loss clinics or attend support meetings.
你也许认为这个误差,=372加减1的,平方根1,除以186加减。
You may think that the uncertainty in there equals the square root 1 of 372 plus or minus 1 1 divided by 186 plus or minus 1.
因此这是个艰难预测，震荡的周期，应该是-，21。5加减0。5秒。
So this is a hard prediction what the period of an oscillation - should be — 21.5 plus or minus a half second.
因此这是个艰难预测，震荡的周期，应该是-，21。5加减0。5秒。
So this is a hard prediction what the period of an oscillation - should be — 21.5 plus or minus a half second.
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