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7x27x11x37x13估简便运算怎么算

2025-03-15 23:04:08

推荐回答（2个）

回答1：

999999
解析：
7×27×11×37×13
=7×(3×9)×11×37×13
=(9×11)×(7×13)×(3×37)
=99×91×111
=[(100-1)×(90+1)]×111
=(9000-90-1+100)×111
=9009×111
=999999

回答2：

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