666*888⼀999巧算

如何解答
2024-11-24 14:27:20
推荐回答(4个)
回答1:

解:666*888/999

=111*6*111*8/(111*9)

=(111*8*111/111)*(6/9)

=111*8*(2*3/(3*3))

=111*8*2/3

=(111/3)*8*2

=37*16

=592

扩展资料:

1、除法计算方法

(1)长除法

长除法适用于正式除法、小数除法、多项式除法。计算过程中兼用了乘法和减法。

(2)短除法

短除法适用于快速除法、多个整数同步除法、二进位数字转换的除法,过程大多只需用到九九乘法表及 9 以上少许整数的相乘因数。

2、乘法运算定律

(1)乘法交换律:axb=bxa

(2)乘法结合律:axbxc=ax(bxc)

(3)乘法分配律:(a+b)xc=axc+bxc

参考资料来源:百度百科-乘法

参考资料来源:百度百科-除法

回答2:

666*888/999
=6*111*8*111/9*111
=2*3*111*8/3*3
=2*111*8/3
=2*8*37
=592

回答3:

666*888/999
=2*333*888/(3*333)
=2*296*3/3
=2*296
=592

回答4:

666*888/999=222*8/3=74/8=74*10-74*2=740-148=598

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