56×39+23×39-9×79的简便方法?
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发布时间:2022-04-25 08:48
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热心网友
时间:2023-11-10 11:47
56×39+23×39-9×79的简便方法?
解:56×39+23×39-9×79
=(56+23)×39-9×79
=79x39-9x79
=79x(39-9)
=79x30
=2370
热心网友
时间:2023-11-10 11:48
56X39十23X39一9x79
=39X(56十23)一9X79
=39x79一9x79
=79X(39一9)
=79x30
=2370
热心网友
时间:2023-11-10 11:47
56×39+23×39-9×79的简便方法?
解:56×39+23×39-9×79
=(56+23)×39-9×79
=79x39-9x79
=79x(39-9)
=79x30
=2370
热心网友
时间:2023-11-10 11:48
56×39+23×39-9×79
=39x(56+23)-9x79
=39x79-9x79
=79x(39-9)
=79x30
=2370
热心网友
时间:2023-11-10 11:48
56X39十23X39一9x79
=39X(56十23)一9X79
=39x79一9x79
=79X(39一9)
=79x30
=2370
热心网友
时间:2023-11-10 11:48
56×39+23×39-9×79
=39x(56+23)-9x79
=39x79-9x79
=79x(39-9)
=79x30
=2370
热心网友
时间:2023-11-10 11:47
56×39+23×39-9×79的简便方法?
解:56×39+23×39-9×79
=(56+23)×39-9×79
=79x39-9x79
=79x(39-9)
=79x30
=2370
热心网友
时间:2023-11-10 11:48
56X39十23X39一9x79
=39X(56十23)一9X79
=39x79一9x79
=79X(39一9)
=79x30
=2370
热心网友
时间:2023-11-10 11:48
56×39+23×39-9×79
=39x(56+23)-9x79
=39x79-9x79
=79x(39-9)
=79x30
=2370
热心网友
时间:2023-11-10 11:47
56×39+23×39-9×79的简便方法?
解:56×39+23×39-9×79
=(56+23)×39-9×79
=79x39-9x79
=79x(39-9)
=79x30
=2370
热心网友
时间:2023-11-10 11:48
56X39十23X39一9x79
=39X(56十23)一9X79
=39x79一9x79
=79X(39一9)
=79x30
=2370
热心网友
时间:2023-11-10 11:48
56×39+23×39-9×79
=39x(56+23)-9x79
=39x79-9x79
=79x(39-9)
=79x30
=2370