8.620.6+0.8624怎么简便计算?

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8.62*0.6+0.862*4怎么简便计算?8.62*0.6+0.862*4怎么简便计算?8.62*0.6+0.862*4怎么简便计算?8.62*0.6+0.862*4=8.62*0.6+8.62*

8.62*0.6+0.862*4怎么简便计算?
8.62*0.6+0.862*4怎么简便计算?

8.62*0.6+0.862*4怎么简便计算?
8.62*0.6+0.862*4
=8.62*0.6+8.62*0.4
=8.62*(0.6+0.4)
=8.62*1
=8.62

8.62*（0.6+0.4）=8.62

8.62*0.6+0.862*4
=8.62*0.6+8.62*0.4
=8.62*(0.6+0.4)
=8.62*1
=8.62

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