101×99×999+999=多少?
=[(101)×99+1]×999 =[(100+1)×99+1]×999 =(9900+99+1)×999 =(9900+100)×999 =10000×999 =9990000 方法二、101×99×999+999 =(101x99+1)x999 =[(100+1)(100-1)+1]x999 =(100x100-1x1+1)x999 =(10000-1+1)x999 =10000x999 =999000 ...
用简便方法计算:101×99×999+999
=10000×999-999+999 =9990000
101×99×999+999用简便方法怎么算
=(10000-1)×999+999 =999×(10000-1+1)=999×10000 =9990000
101×99×999+999 求这题的简便计算
解:101X99X999十999 =999X(101X99十1)=999X[(100十1)(100一1)十1]=999X[100^2一1^2十]=999X[10000一1十1]=999X10000 =9990000
101*99*999+999
101*99*999+999 =(100+1)*(100-1)*999+999 =(100的平方-1)*999+999 =999*(100的平方-1+1)=999*100的平方 =9990000 哦了
101乘99乘999加999的简便方法计算
101 X 99 X 999 + 999 =(100 + 1) X (100 - 1) X 999 + 999 =(100 X 100 - 1) X 999 + 999 =(10000 - 1) X 999 + 999 -- 提公因式999 =9990000
101×99×999+999
回答:是9990000
101*99*999+999怎样简便记计算
101*99*999+999 =9999*999+999 =(9999+1)*999 =10000*999 =9990000
简便运算:101x99x999+999
101x99x999+999 =((100+1)*99+1)*999 =(100*99+99+1)*999 =10000*999 =9990000 以上是爱恋无极限 有种心痛叫您无权访问°为您解答
初一数学题:简便方法
101*99*999+999=(101*99+1)*999 和101*(99+1)*999相比,少了100个999 所以应该是10089900-100*999=9990000