题目内容
（25×5）×2=25×（5×2）运用的运算定律是________．
乘法结合律
分析：（25×5）×2，运用乘法结合律进行简算．
解答：（25×5）×2，
=25×（5×2），
=25×10，
=250；
故答案为：乘法结合律．
点评：此题考查的目的是理解掌握乘法结合律的意义，并且能够灵活运用乘法结合律进行简便计算．
分析：（25×5）×2，运用乘法结合律进行简算．
解答：（25×5）×2，
=25×（5×2），
=25×10，
=250；
故答案为：乘法结合律．
点评：此题考查的目的是理解掌握乘法结合律的意义，并且能够灵活运用乘法结合律进行简便计算．
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