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学过哪些整数运算的运算律
更新时间： 2020-07-04 00:00:00  

a、b、c 为整数 ；

1、加法交换律:a+b=b+a ；

2、加法结合律:a+b+c =(a+b)+c =a+(b+c) =(a+c)+b ；

3、乘法交换律:a×b=b×a ；

4、乘法结合律:a×b×c =(a×b)×c =a×(b×c) =(a×c)×b ；

5、乘法分配律:a×(b+c) =a×b+a×c。

关键词： 哪些 整数 运算

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