算术数
arithmetic───n.算术，算法；数字
arithmetic operation───[计]算术运算
arithmetic operations───算术运算
arithmetic mean───算术均数；等差中项；n.算术中项，算术平均
arithmetic series───[数]算术级数，等差级数
arithmetic progression───算术级数，等差级数；等差级数，等差数列；[数]算术级数，算术数列
arithmetic average───[经] 算术平均数；[数]算术平均数
mental arithmetic───n.心算
number───vi.计入；总数达到；vt.编号；计入；数…的数目；使为数有限；n.数；（杂志等的）期；号码；数字；算术
Because all character data is a string, Net.Data USES built-in function to perform arithmetic operations on a string that represents a valid number, including those in exponential formats.───由于所有字符数据都是字符串，因此Net . Data将使用内置函数来对表示有效数字(包括用指数形式表示的数字)的字符串执行算术运算。
regular system (of number-words) also makes arithmetic clearer to understand.───的规律系统也让算术更加清晰易懂。
This module gives support for rational number arithmetic.───此模块提供对有理数算法的支持。
A quality of arithmetic number sequence elicited from discussing error questions───错题探讨引出等差数列的一个性质