(0,6+9,6*0,25)-1,8的简便方法
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(0,6+9,6*0,25)-1,8的简便方法
![(0,6+9,6*0,25)-1,8的简便方法](/uploads/image/z/6101261-53-1.jpg?t=%EF%BC%880%2C6%2B9%2C6%2A0%2C25%29-1%2C8%E7%9A%84%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95)
(0.6+9.6*0,25)-1.8
=(0.6+9.6÷4)-1.8
=(0.6+2.4)-1.8
=3-1.8
=1.2
再问: 0,25怎么变成的4,谢谢
再答: 0.25=1/4 9.6*0.25 =9.6*1/4 =9.6÷4 =2.4
=(0.6+9.6÷4)-1.8
=(0.6+2.4)-1.8
=3-1.8
=1.2
再问: 0,25怎么变成的4,谢谢
再答: 0.25=1/4 9.6*0.25 =9.6*1/4 =9.6÷4 =2.4