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25×5×75×5=(25+75)×5
×
×
分析:把算式25×5×75×5连乘的形式,而(25+75)×5,是运用乘法的分配律写成25×5+75×5,再比较即可.
解答:解:25×5×75×5=25×25×25×3,
(25+75)×5=25×5+75×5,
25×5×75×5≠(25+75)×5;
故答案为:×.
点评:考查了乘法的运算定律的运用.
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