她准备学习简单的加法和减法。
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.
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.
理解加法和减法是互为逆运算；
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.
测试涉及简单的计算，如加法和减法。
The test involves simple calculations, such as addition and subtraction.
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.
学算术要学会加法和减法。
不一样加法和减法，反映的趋势是不一样的。
Not the same as addition and subtraction, reflecting the tendency is not the same.
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 pide.
加法和减法叫做第一级运算，乘法和除法叫做第二级运算。
Addition and subtraction we call the first -progression operation, multiplication and division we call the second -progression operation.
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.
其中应用题中含盖的范围有：计算方法、系统学、几何学、测量和使用加法和减法。
Areas covered include numeration, number systems, geometry, measurement, and the use of addition and subtraction in word problems.
在数学方面，绿色小星星和他的朋友示范几何，加法和减法，10以内的数字，音乐和其它。
In math, little green star and his friends demonstrate geometry, addition and subtraction, sets of 10s, music and more.
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.
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.
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).
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.
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.
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.
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.
教加法、减法、乘法、钱和几何。
Teaches addition, subtraction, multiplication, money and geometry.
种族进化史研究表明，动物具备算术能力，它们运用数量感来表征可数与不可数的数量，并以此为基础进行加法、减法、乘法和除法运算。
It means they can represent countable and uncountable quantity with mental magnitude. They can perform addition, subtraction, multiplication and division.
学习珠心算就像去健身房，使得你儿童的大脑变得更灵活，和对加法，减法，乘法和除法的运萛更强。
Learning the abacus is like going to the gym to exercise your brain as it becomes faster and stronger through mental calculations for addition, subtraction, multiplication and division.
阐述了带符号十进制数原码、补码位数的扩展和压缩方法，介绍了十进制补码的加法运算和减法运算。
The method of expansion and compression of the decimal numeral true form with symbol and ten's complement digit is introduced. And the addition and minus operations of ten's complement are introduced.
Drawa UMLdiagram first编写和测试vector2d定义加法，减法，数量积，输入和输出操作符一类，和两个二维向量的内积。
Write and test a class Vector2D to define operators for addition, subtraction, scalar product, input and output, and inner product of two 2d vectors.
Drawa UMLdiagram first编写和测试vector2d定义加法，减法，数量积，输入和输出操作符一类，和两个二维向量的内积。
Write and test a class Vector2D to define operators for addition, subtraction, scalar product, input and output, and inner product of two 2d vectors.
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