38.2x7.5+75+0.75x5.18如何简便方法运算?
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38.2x7.5+75+0.75x5.18如何简便方法运算?
![38.2x7.5+75+0.75x5.18如何简便方法运算?](/uploads/image/z/17837422-70-2.jpg?t=38.2x7.5%2B75%2B0.75x5.18%E5%A6%82%E4%BD%95%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%BF%90%E7%AE%97%3F)
38.2x7.5+75+0.75x5.18
=38.2x7.5+10x7.5+7.5x51.8
=7.5x(38.2+10+51.8)
=7.5x100
=750
=38.2x7.5+10x7.5+7.5x51.8
=7.5x(38.2+10+51.8)
=7.5x100
=750
38.2×7.5+75+0.75×518如何简便方法运算?
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