999*999+1999的简便运算是: 999*999+1999 =999x999+1000x1+999x1 =999x(999+1)+1000x1 =999x1000+1x1000 =(999+1)x1000 =1000x1000 =1000000
999x999+1999用简便算法怎么算
投稿:叶落知秋
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发布时间:2023-12-03 20:23:16
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