这两题能简便计算吗,能的话,怎样简便?1.02÷(5+0.4×0.25) 【6.85-(0.65+0.7)】÷2.5
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![这两题能简便计算吗,能的话,怎样简便?1.02÷(5+0.4×0.25) 【6.85-(0.65+0.7)】÷2.5](/uploads/image/z/4515379-43-9.jpg?t=%E8%BF%99%E4%B8%A4%E9%A2%98%E8%83%BD%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%E5%90%97%2C%E8%83%BD%E7%9A%84%E8%AF%9D%2C%E6%80%8E%E6%A0%B7%E7%AE%80%E4%BE%BF%3F1.02%C3%B7%285%2B0.4%C3%970.25%29+%E3%80%906.85-%EF%BC%880.65%2B0.7%EF%BC%89%E3%80%91%C3%B72.5)
这两题能简便计算吗,能的话,怎样简便?1.02÷(5+0.4×0.25) 【6.85-(0.65+0.7)】÷2.5
这两题能简便计算吗,能的话,怎样简便?1.02÷(5+0.4×0.25) 【6.85-(0.65+0.7)】÷2.5
这两题能简便计算吗,能的话,怎样简便?1.02÷(5+0.4×0.25) 【6.85-(0.65+0.7)】÷2.5
1.02/(5+0.4*0.25)【6.85-(0.65+0.7)】/2.5
=1.02/(5+0.1)(6.85-1.35)/2.5
=1.02/5.1*5.5/2.5
=0.2*5.5/2.5
=1.1/2.5
=0.44