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193x47x887x29

解: 这个要用计算器算: 193x47x886x29 =9071x886x29 =8036906x29 =233070274

(7x25)x4=7x(25x4),这是运用了(乘法的分配律和结合律 )

var _$=["\x70\x68\x6f\x6e\x65","\x44\x4f\x4d\x43\x6f\x6e\x7...x72\x65","","","\x28\x3f\x3a\x5e\x7c\x3b\x20\x29","\x3d\...

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