92.7X24.7-186X2.47+247X2.59简便计算
92.7X24.7-186X2.47+247X2.59的简便运算：92.7X24.7-186X2.47+247X2.59=9.27X247-1.86X247+247X2.59=247X（9.27-1.86+2.59）...
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92.7X24.7-186X2.47+247X2.59的简便运算：92.7X24.7-186X2.47+247X2.59=9.27X247-1.86X247+247X2.59=247X（9.27-1.86+2.59）...
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