18-1.8÷0.125÷0.8怎么简便运算

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18-1.8÷0.125÷0.8怎么简便运算
18-1.8÷0.125÷0.8怎么简便运算

18-1.8÷0.125÷0.8怎么简便运算
18-1.8÷0.125÷0.8
=18-1.8÷(0.125×0.8)
=18-1.8÷0.1
=18-18
=0

18-1.8÷0.125÷0.8
=18-1.8÷(0.125×0.8)
=18-1.8÷0.1
=18-18
=0

18-1.8÷0.125÷0.8
=18-1.8÷1/8÷0.8
=18-1.8×8÷0.8
=18-1.8×(8÷0.8)
=18-1.8×10
=18-18
=0

18-1.8÷0.125÷0.8
=18-1.8÷(0.125×0.8)
=18-1.8÷0.1
=18-18
=0