0.654+10.9*6.5怎样简算
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0.654+10.9*6.5怎样简算
![0.654+10.9*6.5怎样简算](/uploads/image/z/908353-1-3.jpg?t=0.654%2B10.9%2A6.5%E6%80%8E%E6%A0%B7%E7%AE%80%E7%AE%97)
=0.1*(6.5+0.04)+10.9*6.5
=(10.9+0.1)*6.5+0.004
=(10+1)*6.5+0.004
=65+6.5+0.004
=71.504
=(10.9+0.1)*6.5+0.004
=(10+1)*6.5+0.004
=65+6.5+0.004
=71.504