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73+93+27=73+27+93是根据________.

加法交换律
分析:73+93+27,运用加法交换律和结合律进行简算.
解答:73+93+27,
=(73+27)+93,
=100+93,
=193.
故答案为:加法交换律.
点评:此题考查的目的理解掌握加法交换律和结合律的意义,并且能够运用加法交换律和结合律进行简便计算.
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