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101*99-99简便计算

2025-03-16 07:31:25

推荐回答（2个）

回答1：

101*99-99
=99*（101-1）
=99*100
=9900

回答2：

把101变成100+1，式子就变成了(100+1)*99-99，然后使用乘法分配律变成100*99+1*99-99=100*99=9900

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