7.2*0.09+0.1*0.72简便列综合算式

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7.2*0.09+0.1*0.72简便列综合算式7.2*0.09+0.1*0.72简便列综合算式7.2*0.09+0.1*0.72简便列综合算式7.2*0.09+0.1*0.72=7.2*0.09+0

7.2*0.09+0.1*0.72简便列综合算式
7.2*0.09+0.1*0.72简便列综合算式

7.2*0.09+0.1*0.72简便列综合算式
7.2*0.09+0.1*0.72
=7.2*0.09+0.01*7.2
=7.2*(0.09+0.01)
=7.2*0.1
=0.72