摘要
加减乘除的英文:add,subtract,multiply and divide。例句:你知道加减乘除的符号吗?Do you know the signs for add,multiply,and divide?

例句
在办公室里有能做乘法除法的计算尺,以及能加减乘除的台式计算机。
In offices there are slide rules for multiplication and division,and desk machines which can add,multiply and divide.
例句
年长者表现不太好的方面则是:(数字能力加减乘除运算的速度)以及感知速度听到指令按下按钮的速度。
Where they fared less well was number ability ( how quickly you can multiply,add,subtract and divide) and perceptual speed-how fast you can push a button when prompted.
加载中,请稍侯......
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