math and applied math : metallurgy > the four species action



Contents ·No. 1 ·No. 2 ·Related Phrases ·Containing Phrases ·More results... No. 1 　　Add, subtract, multiply, divide the four operations collectively. In a formula where, if both plus or minus, but also multiply or divide, called the four hybrid operation. In the number of algebraic expressions, and various functions can be carried out between the four operations, addition and subtraction is called the general to the first-class operation, the multiplication and division as second-class operation. Translated by Google No. 2 　　在初等数学中,当一级运算(加减)和二级运算(乘除)同时出现在一个式子中时,它们的运算顺序是先乘除,后加减,如果有括号就先括号内后括号外,同一级运算顺序是从左到右．这样的运算叫四则运算，连同三级运算的乘方开方，是初等代数里的基本运算． 　　四则指加法、减法、乘法、除法的计算法则. 　　一道四则运算的算式并不需要一定有四种运算符号,一般指由两个或两个以上运算符号及括号,把多数合并成一个数的运算. 　　加法、减法、乘法和除法统称四则运算。 Related Phrases equation math acreage cyclopedia two googol Wikipedia Daquan dict Containing Phrases arithmometer complex the four species action arithmetical unit arithmometer Shushituoshi The four species action Tika Terminal Notion Temperament And the four species action