6.58×4.5×0.9最简便的运算方法.
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6.58×4.5×0.9最简便的运算方法.
![6.58×4.5×0.9最简便的运算方法.](/uploads/image/z/6486314-50-4.jpg?t=6.58%C3%974.5%C3%970.9%E6%9C%80%E7%AE%80%E4%BE%BF%E7%9A%84%E8%BF%90%E7%AE%97%E6%96%B9%E6%B3%95.)
6.58*4.5*0.9
=3.29*9*0.9
=3.29*8.1
=(3.3-0.01)*(8+0.1)
=26.4-0.08+0.33-0.001
=26.73-0.081
=26.649
=3.29*9*0.9
=3.29*8.1
=(3.3-0.01)*(8+0.1)
=26.4-0.08+0.33-0.001
=26.73-0.081
=26.649