4.42乘0.99加0.0442的简便算法

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4.42乘0.99加0.0442的简便算法4.42乘0.99加0.0442的简便算法4.42乘0.99加0.0442的简便算法4.42*0.99+0.0442=4.42*(1-0.01)+0.0442

4.42乘0.99加0.0442的简便算法
4.42乘0.99加0.0442的简便算法

4.42乘0.99加0.0442的简便算法
4.42*0.99+0.0442
=4.42*(1-0.01)+0.0442
=4.42-0.0442+0.0442
=4.42

4.42*0.99+0.0442
=4.42*0.99+(4.42*0.01-4.42*0.01)+0.0042
=4.42*(0.99+0.01)-0.0042+0.0042
=4.42
或简单点
4.42*0.99+0.0042
=4.42*0.99+4.42*0.01
=4.42*(0.99+0.01)
=4.42

4.42*0.99+0.0442
=4.42*0.99+4.42*0.01
=4.42*(0.99+0.01)
=4.42

4.42*0.99+0.0442
=4.42*0.99*100/100+0.0442
=0.0442*99+0.0442
=0.0442*(99+1)
=0.0442*100
=4.42
或者
4.42*0.99+0.0042
=4.42*0.99+4.42*0.01
=4.42*(0.99+0.01)
=4.42
或者
4.42*0.99+0.0442
=4.42*(1-0.01)+0.0442
=4.42-0.0442+0.0442
=4.42

4.42x0.99+0.0442
=0.0442x99+0.0442x1
=0.0442x(99+1)
=0.0442x100
=4.42

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