She's ready to learn simple addition and subtraction.
她准备学习简单的加法和减法。
Most of these are probably self-explanatory, like addition, subtraction, multiplication and division.
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。
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。
Pressing return a couple more times will show an addition and subtraction.
再按两次回车将显示加法和减法表达式。
Understand that addition and subtraction are inverse.
理解加法和减法是互为逆运算；
The little boy can already do simple problems in addition and subtraction.
这个小不点孩子都已经会做简单的加减法问题了。
Not the same as addition and subtraction, reflecting the tendency is not the same.
不一样加法和减法，反映的趋势是不一样的。
The danger: students who can not even do simple addition and subtraction.
很危险的是，一些先生甚至连复杂的加减法都不会做。
The test involves simple calculations, such as addition and subtraction.
测试涉及简单的计算，如加法和减法。
Soul grows more by subtraction than by addition.
做减法比做加法让灵魂成长得更快！
Addition, subtraction, multiplication and division are all basic operations.
加 减乘除是最基本的运算法则。
Requires addition, subtraction, multiplication, division a function of the design.
要求加法、减法、乘法、除法各设计一个函数。
The same was true for an addition-subtraction task that measures speed and accuracy.
在测量速度和准确度的加减运算任务中，情况也是如此。
Master the method of doing addition and subtraction.
掌握整十数加减法的计算方法。
Master the method of doing addition and subtraction.
掌握整十数加减法的计算方法。
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