题目内容
13×4+12×4=4×(13+12)运用了乘法的交换律.________.
错误
分析:13×4+12×4,运用乘法分配律进行简算.
解答:13×4+12×4,
=(13+12)×4,
=25×4,
=100.
故答案为:错误.
点评:此题考查的目的是理解乘法分配律的意义,并且能够运用乘法分配律进行简便计算.
分析:13×4+12×4,运用乘法分配律进行简算.
解答:13×4+12×4,
=(13+12)×4,
=25×4,
=100.
故答案为:错误.
点评:此题考查的目的是理解乘法分配律的意义,并且能够运用乘法分配律进行简便计算.
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