加法&减法 addition & subtraction
加法减法器 adder-subtractor
加法/减法 addition/subtraction
加法-减法链 Addition-Subtraction chains
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饱和加法和减法 add and subtract with saturate
加法和减法的检验 Checking Addition and Subtraction
矢量的加法和减法 vector addition and subtraction
小孩动画加法和减法 Kiddie animated addition and subtraction
加法增加乘法减少 Additive Increase Multiplicative Decrease
她准备学习简单的加法和减法。
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.
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.
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