试题与答案

式子7-3-4+18-11=(7+8)+(-3-4-11)是应用了( ) A.加法

题型:选择题

题目:

式子7-3-4+18-11=(7+8)+(-3-4-11)是应用了(  )
A.加法交换律B.加法结合律
C.分配律D.加法的交换律与结合律

答案:

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